id:A147066 - OEIS Search Results

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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 01010-11111 pattern in any orientation.

+0
1

1, 1, 1, 1, 5, 13, 28, 77, 344, 1851, 11392, 75139, 594346, 5700553, 66311093, 914949886 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.1.1.1.1.1.0.0.0` `.0.1.0.1.0.0.0.1` `.1.0.0.0.0.0.1.1` `.1.1.0.0.0.0.0.1` `.1.0.0.0.0.0.1.1` `.1.1.0.0.0.0.0.1` `.1.0.0.0.1.0.1.0` `.0.0.0.1.1.1.1.1`
	CROSSREFS	`Sequence in context: A023537 A023653 A060182 this_sequence A133204 A152658 A100877` `Adjacent sequences: A147063 A147064 A147065 this_sequence A147067 A147068 A147069`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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