id:A147453 - OEIS Search Results

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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 11000-01111-11000 pattern in any orientation.

+0
1

1, 1, 1, 1, 3, 1, 15, 9, 105, 33, 2514, 927, 80722, 22331, 4773446, 785549, 420563686, 56689127, 72421134415, 8452376637, 24510814953678, 2212845668155 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.1.0.1.0.0.1.0.1` `.1.1.1.0.0.1.1.1` `.0.1.0.0.0.0.1.0` `.0.1.0.0.0.0.1.0` `.0.1.0.0.0.0.1.0`
	CROSSREFS	`Sequence in context: A134144 A035342 A039815 this_sequence A147020 A134685 A130757` `Adjacent sequences: A147450 A147451 A147452 this_sequence A147454 A147455 A147456`
	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