id:A146474 - OEIS Search Results

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Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1110-0111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 9, 9, 23, 23, 85, 85, 375, 375, 2149, 2149, 15299, 15299, 129877, 129877, 1353943, 1353943, 17475557, 17475557 (list; graph; listen)

	OFFSET	`1,11`
	EXAMPLE	`Maximal 11 X 11 example` `.0.0.0.1.0.0.0.1.0.0.0` `.0.0.0.1.1.0.1.1.0.0.0` `.0.0.0.1.1.0.1.1.0.0.0` `.1.1.1.0.1.0.1.0.1.1.1` `.0.1.1.1.0.0.0.1.1.1.0` `.0.0.0.0.0.0.0.0.0.0.0` `.0.1.1.1.0.0.0.1.1.1.0` `.1.1.1.0.1.0.1.0.1.1.1` `.0.0.0.1.1.0.1.1.0.0.0` `.0.0.0.1.1.0.1.1.0.0.0` `.0.0.0.1.0.0.0.1.0.0.0`
	CROSSREFS	`Sequence in context: A146663 A146394 A147510 this_sequence A145957 A128019 A108411` `Adjacent sequences: A146471 A146472 A146473 this_sequence A146475 A146476 A146477`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 17 23:40 EST 2009. Contains 171025 sequences.

AT&T Labs Research