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Search: id:A146002
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| A146002 |
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Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 3X3 plus 2,1 2,2 2,3 1,2 3,2. |
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| 1, 1, 2, 1, 2, 1, 5, 2, 9, 3, 28, 6, 76, 13, 295, 41, 1196, 134, 6337, 523, 36933, 2341, 266568, 13112, 2186885, 85330, 21909179, 657274, 253725200, 5867785
(list; graph; listen)
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