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A146183
Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 110-111-100 pattern in any orientation.
+0
1
1, 1, 1, 1, 5, 17, 43, 197, 1293, 11263, 110807, 1310257, 21564593, 459131585, 12523288493, 440243859565, 19398701026043, 1090842898014815, 79649624560507867, 7542069381975617255, 913933732625520247505
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Maintained by
N. J. A. Sloane
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njas@research.att.com
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Last modified December 4 23:11 EST 2009. Contains 170347 sequences.
AT&T Labs Research
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