id:A147050 - 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 0100-1100-0111-0010 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 5, 17, 45, 201, 861, 4033, 28285, 222873, 2292605, 26123281, 391420701, 6423928729 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.0.0.0.1.0` `.0.0.1.1.0.0.1.1` `.1.1.1.0.1.1.1.0` `.0.1.0.0.0.1.0.0` `.0.0.1.0.0.0.1.0` `.0.1.1.1.0.1.1.1` `.1.1.0.0.1.1.0.0` `.0.1.0.0.0.1.0.0`
	CROSSREFS	`Sequence in context: A099451 A133252 A048612 this_sequence A147397 A147193 A147043` `Adjacent sequences: A147047 A147048 A147049 this_sequence A147051 A147052 A147053`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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