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A147382
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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 10000-11100-00111-00001 pattern in any orientation.
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0
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1, 1, 1, 1, 1, 1, 1, 1, 3, 11, 25, 47, 101, 257, 681, 1819, 5437, 17747, 62109, 244571, 1025085, 4586657, 22318221
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