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| A283433
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Triangle read by rows: T(n,m) is the number of pattern classes in the (n,m)-rectangular grid with 4 colors and n>=m, two patterns are in the same class if one of them can be obtained by a reflection or 180-degree rotation of the other.
(history;
published version)
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#31 by Bruno Berselli at Mon Apr 29 05:22:34 EDT 2019
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#30 by Michel Marcus at Mon Apr 29 05:22:15 EDT 2019
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#29 by María Merino at Mon Apr 29 05:20:40 EDT 2019
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#28 by María Merino at Mon Apr 29 05:20:38 EDT 2019
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| LINKS
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M. Merino and I. Unanue, <a href="https://doi.org/10.1387/ekaia.17851">Counting squared grid patterns with Pólya Theory</a>, EKAIA, 34 (2018), 289-316 (in Basque).
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| STATUS
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approved
editing
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#27 by Bruno Berselli at Tue Aug 01 06:03:49 EDT 2017
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#26 by Michel Marcus at Tue Aug 01 05:53:35 EDT 2017
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#25 by María Merino at Tue Aug 01 05:48:39 EDT 2017
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#24 by María Merino at Tue Aug 01 05:48:31 EDT 2017
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| LINKS
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María Merino, <a href="/A283433/b283433.txt">Table of n, a(n) forRows n = =0..85941 of triangle, flattened</a>
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| STATUS
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approved
editing
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#23 by Bruno Berselli at Wed May 17 11:48:03 EDT 2017
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#22 by Joerg Arndt at Wed May 17 11:44:52 EDT 2017
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