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A147510
Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 11110-01111 pattern in any orientation.
+0
1
1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 9, 9, 23, 23, 81, 81, 267, 267, 1053, 1053, 6173, 6173
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Maintained by
N. J. A. Sloane
(
njas@research.att.com
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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.
AT&T Labs Research
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