id:A146471 - OEIS Search Results

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Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 1110-0111 pattern in any orientation.

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1, 1, 1, 1, 1, 1, 1, 1, 13, 13, 69, 69, 457, 457, 6223, 6223, 127787, 127787, 3658281, 3658281, 163817453, 163817453, 11238713859, 11238713859, 1160267254915, 1160267254915 (list; graph; listen)

	OFFSET	`1,9`
	EXAMPLE	`Maximal 9 X 9 example` `.0.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0.0` `.0.1.1.1.0.1.1.1.0` `.1.1.1.0.0.0.1.1.1` `.0.0.0.0.0.0.0.0.0` `.1.1.1.0.0.0.1.1.1` `.0.1.1.1.0.1.1.1.0` `.0.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0.0`
	CROSSREFS	`Sequence in context: A147013 A147187 A147069 this_sequence A071612 A059796 A112230` `Adjacent sequences: A146468 A146469 A146470 this_sequence A146472 A146473 A146474`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

AT&T Labs Research