id:A147219 - 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 1100-0111-0101 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 5, 17, 37, 107, 651, 4763, 31885, 243507, 2726593, 39573223, 647861719, 12294997893, 299566536047, 9265546813073, 344823799726629 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.1.0.1.0` `.0.0.0.0.1.1.1.0` `.0.0.1.1.0.0.1.1` `.0.0.0.1.0.0.0.0` `.0.0.1.1.1.0.0.0` `.0.0.0.0.1.0.0.0`
	CROSSREFS	`Sequence in context: A145012 A147204 A121326 this_sequence A146280 A147181 A146850` `Adjacent sequences: A147216 A147217 A147218 this_sequence A147220 A147221 A147222`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.

AT&T Labs Research