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Search: id:A145998
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| A145998 |
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Number of n X n binary arrays symmetric under horizontal reflection 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, 4, 1, 27, 10, 325, 79, 7166, 1068, 296998, 32561, 25489453, 2049805, 4199698432, 237788014, 1353419597835, 53948164143, 849049576212123, 24026619761999, 1041648115351377356, 20926733702956682
(list; graph; listen)
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