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	<id>https://michaelnielsen.org/polymath/index.php?action=history&amp;feed=atom&amp;title=T32-invariant_sequences</id>
	<title>T32-invariant sequences - Revision history</title>
	<link rel="self" type="application/atom+xml" href="https://michaelnielsen.org/polymath/index.php?action=history&amp;feed=atom&amp;title=T32-invariant_sequences"/>
	<link rel="alternate" type="text/html" href="https://michaelnielsen.org/polymath/index.php?title=T32-invariant_sequences&amp;action=history"/>
	<updated>2026-04-07T23:41:30Z</updated>
	<subtitle>Revision history for this page on the wiki</subtitle>
	<generator>MediaWiki 1.42.3</generator>
	<entry>
		<id>https://michaelnielsen.org/polymath/index.php?title=T32-invariant_sequences&amp;diff=2529&amp;oldid=prev</id>
		<title>Alec at 14:21, 10 January 2010</title>
		<link rel="alternate" type="text/html" href="https://michaelnielsen.org/polymath/index.php?title=T32-invariant_sequences&amp;diff=2529&amp;oldid=prev"/>
		<updated>2010-01-10T14:21:16Z</updated>

		<summary type="html">&lt;p&gt;&lt;/p&gt;
&lt;table style=&quot;background-color: #fff; color: #202122;&quot; data-mw=&quot;interface&quot;&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
				&lt;col class=&quot;diff-content&quot; /&gt;
				&lt;col class=&quot;diff-marker&quot; /&gt;
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				&lt;tr class=&quot;diff-title&quot; lang=&quot;en&quot;&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;← Older revision&lt;/td&gt;
				&lt;td colspan=&quot;2&quot; style=&quot;background-color: #fff; color: #202122; text-align: center;&quot;&gt;Revision as of 07:21, 10 January 2010&lt;/td&gt;
				&lt;/tr&gt;&lt;tr&gt;&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot; id=&quot;mw-diff-left-l1&quot;&gt;Line 1:&lt;/td&gt;
&lt;td colspan=&quot;2&quot; class=&quot;diff-lineno&quot;&gt;Line 1:&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A &amp;lt;math&amp;gt;T_k&amp;lt;/math&amp;gt;-invariant sequence is one that satisfies &amp;lt;math&amp;gt;x_{kn} = x_n&amp;lt;/math&amp;gt; for all &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;A &amp;lt;math&amp;gt;T_k&amp;lt;/math&amp;gt;-invariant sequence is one that satisfies &amp;lt;math&amp;gt;x_{kn} = x_n&amp;lt;/math&amp;gt; for all &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt;.&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;−&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This sequence, of length &amp;lt;math&amp;gt;417&amp;lt;/math&amp;gt;, is &amp;lt;math&amp;gt;T_{32}&amp;lt;/math&amp;gt;-invariant:&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot; data-marker=&quot;+&quot;&gt;&lt;/td&gt;&lt;td style=&quot;color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;This sequence, of length &amp;lt;math&amp;gt;417&amp;lt;/math&amp;gt;, is &amp;lt;math&amp;gt;T_{32}&amp;lt;/math&amp;gt;-invariant &lt;ins style=&quot;font-weight: bold; text-decoration: none;&quot;&gt;with discrepancy &amp;lt;math&amp;gt;2&amp;lt;/math&amp;gt;&lt;/ins&gt;:&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;br&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;tr&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  0 + + - - + + - + - - + - - - + + - + - - + + + - + - - + + + -&lt;/div&gt;&lt;/td&gt;&lt;td class=&quot;diff-marker&quot;&gt;&lt;/td&gt;&lt;td style=&quot;background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;&quot;&gt;&lt;div&gt;  0 + + - - + + - + - - + - - - + + - + - - + + + - + - - + + + -&lt;/div&gt;&lt;/td&gt;&lt;/tr&gt;
&lt;/table&gt;</summary>
		<author><name>Alec</name></author>
	</entry>
	<entry>
		<id>https://michaelnielsen.org/polymath/index.php?title=T32-invariant_sequences&amp;diff=2525&amp;oldid=prev</id>
		<title>Alec: Sequence of length 417.</title>
		<link rel="alternate" type="text/html" href="https://michaelnielsen.org/polymath/index.php?title=T32-invariant_sequences&amp;diff=2525&amp;oldid=prev"/>
		<updated>2010-01-10T14:02:07Z</updated>

		<summary type="html">&lt;p&gt;Sequence of length 417.&lt;/p&gt;
&lt;p&gt;&lt;b&gt;New page&lt;/b&gt;&lt;/p&gt;&lt;div&gt;A &amp;lt;math&amp;gt;T_k&amp;lt;/math&amp;gt;-invariant sequence is one that satisfies &amp;lt;math&amp;gt;x_{kn} = x_n&amp;lt;/math&amp;gt; for all &amp;lt;math&amp;gt;n&amp;lt;/math&amp;gt;.&lt;br /&gt;
&lt;br /&gt;
This sequence, of length &amp;lt;math&amp;gt;417&amp;lt;/math&amp;gt;, is &amp;lt;math&amp;gt;T_{32}&amp;lt;/math&amp;gt;-invariant:&lt;br /&gt;
&lt;br /&gt;
 0 + + - - + + - + - - + - - - + + - + - - + + + - + - - + + + -&lt;br /&gt;
 + - - - + + - + - + - + - - + - - + + + + - - - - + + - + - - +&lt;br /&gt;
 + + + - - - + + + - - - - + - + - + + - + + - - + + - - - + + +&lt;br /&gt;
 - + + - + - + - + - - - - + - + - + + - + + - + + - + - + - - +&lt;br /&gt;
 - - - + - + + + - - + - + + - + + - + - + - - + - - - + - + + +&lt;br /&gt;
 + - + - - + - - + - + - + + - - - + + + - - + - + - - + - + + -&lt;br /&gt;
 + + - + - + + - - - - + + + - - + - - + + + + - - - + - + - - +&lt;br /&gt;
 - + + - + + - + - + + - - - + + + - - - + + - - - + + + - + - -&lt;br /&gt;
 + + + - - + - + - - + - + - + + - - - + + + - + + - - - + - + -&lt;br /&gt;
 - + - + - + + + + - - + - - + + + - - - + + + - - - + + - + + -&lt;br /&gt;
 - - - + + + - - + + - - - + + - + + + - + - - - - + - + + + - -&lt;br /&gt;
 + + + - - - + - - + + + - + - - - + + + + - - + + - + - + - - +&lt;br /&gt;
 - - - + - + + + + - - - + + + - - + - + + - - - + - + + - + - +&lt;br /&gt;
 - +&lt;/div&gt;</summary>
		<author><name>Alec</name></author>
	</entry>
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