id:A146936 - 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 1111-1111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 3, 7, 14, 39, 110, 377, 1728, 8445, 46261, 295085, 2140608, 18281422, 182971434, 2102657419, 27813973723, 424019281880, 7465054408643, 152329530023565, 3599461276657166, 98302190158216996, 3100794527661403207 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.1.0.0` `.0.0.1.1.1.1.0.0` `.1.1.0.0.0.0.1.1` `.1.1.0.0.0.0.1.1` `.1.1.0.0.0.0.1.1` `.1.1.0.0.0.0.1.1` `.0.0.1.1.1.1.0.0` `.0.0.1.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A146920 A079939 A147006 this_sequence A146155 A106363 A128658` `Adjacent sequences: A146933 A146934 A146935 this_sequence A146937 A146938 A146939`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 24 14:25 EST 2009. Contains 167438 sequences.

AT&T Labs Research