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A147063
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Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 01010-11111 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 2, 3, 6, 9, 16, 23, 74, 177, 647, 1682, 5837, 15849, 74186, 276554, 1634940, 7124985, 45487535, 222097984, 1721224041, 10469414217, 99805923832
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