id:A147122 - 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 1000-1000-1111-0100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 5, 25, 83, 469, 2129, 11813, 86099, 830451, 8876513, 123941743, 2095230143 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.0.0.0.0.1.0` `.0.1.0.0.1.1.1.1` `.1.1.0.0.0.0.0.1` `.0.1.1.1.0.0.0.1` `.1.0.0.0.1.1.1.0` `.1.0.0.0.0.0.1.1` `.1.1.1.1.0.0.1.0` `.0.1.0.0.0.0.1.0`
	CROSSREFS	`Sequence in context: A122679 A147114 A131537 this_sequence A051229 A058919 A018212` `Adjacent sequences: A147119 A147120 A147121 this_sequence A147123 A147124 A147125`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.