id:A147142 - OEIS Search Results

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Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 1000-1100-0110-0011 pattern in any orientation.

+0
1

1, 1, 1, 3, 7, 17, 39, 127, 681, 3913, 21369, 147701, 1344439, 15252227, 199338371, 3018576265, 55990200331, 1283966558111, 35424143775231 (list; graph; listen)

	OFFSET	`1,4`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.1.1.0.0` `.0.0.0.0.0.1.1.0` `.0.0.0.0.0.0.1.1` `.0.0.0.0.1.1.0.1` `.1.0.0.1.0.1.1.0` `.1.1.0.1.1.0.1.1` `.0.1.1.0.1.1.0.1` `.0.0.1.1.0.1.1.0`
	CROSSREFS	`Sequence in context: A157029 A077927 A005197 this_sequence A106472 A036885 A137682` `Adjacent sequences: A147139 A147140 A147141 this_sequence A147143 A147144 A147145`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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