id:A147274 - 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 1000-1000-1111-0001 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 5, 25, 85, 377, 1825, 10067, 61143 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.1.0.0.1.1` `.1.1.1.1.0.0.1.0` `.1.0.0.0.0.0.1.0` `.1.0.0.0.1.1.1.0` `.0.1.1.1.0.0.0.1` `.0.1.0.0.0.0.0.1` `.0.1.0.0.1.1.1.1` `.1.1.0.0.1.0.0.0`
	CROSSREFS	`Sequence in context: A051229 A058919 A018212 this_sequence A147034 A146460 A083090` `Adjacent sequences: A147271 A147272 A147273 this_sequence A147275 A147276 A147277`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 3 22:15 EST 2009. Contains 170310 sequences.