id:A147399 - 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 1000-1110-0111-0001 pattern in any orientation.

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1, 1, 1, 1, 1, 1, 1, 1, 5, 5, 17, 17, 45, 45, 217, 217, 1729, 1729, 28581, 28581, 422837, 422837, 7769557, 7769557, 212491441, 212491441 (list; graph; listen)

	OFFSET	`1,9`
	EXAMPLE	`Maximal 9 X 9 example` `.0.0.0.1.0.1.0.0.0` `.0.1.1.1.0.1.1.1.0` `.1.1.1.0.0.0.1.1.1` `.1.0.0.0.0.0.0.0.1` `.0.0.0.0.0.0.0.0.0` `.1.0.0.0.0.0.0.0.1` `.1.1.1.0.0.0.1.1.1` `.0.1.1.1.0.1.1.1.0` `.0.0.0.1.0.1.0.0.0`
	CROSSREFS	`Sequence in context: A146780 A146860 A146185 this_sequence A147195 A147045 A146065` `Adjacent sequences: A147396 A147397 A147398 this_sequence A147400 A147401 A147402`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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

AT&T Labs Research