id:A147511 - OEIS Search Results

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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 11110-01111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 9, 15, 29, 57, 137, 413, 1389, 4485, 15371, 54209, 224739, 1032991, 5497929, 29140255, 171761393, 1058704295, 7315438183 (list; graph; listen)

	OFFSET	`1,8`
	EXAMPLE	`Maximal 8 X 8 example` `.1.0.0.0.1.1.1.1` `.1.1.0.1.1.1.1.0` `.1.1.0.0.0.0.0.0` `.1.1.0.0.0.0.1.0` `.0.1.0.0.0.0.1.1` `.0.0.0.0.0.0.1.1` `.0.1.1.1.1.0.1.1` `.1.1.1.1.0.0.0.1`
	CROSSREFS	`Sequence in context: A046353 A046356 A060874 this_sequence A124580 A103508 A051246` `Adjacent sequences: A147508 A147509 A147510 this_sequence A147512 A147513 A147514`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research