id:A147260 - 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 0001-1101-0111 pattern in any orientation.

+0
1

1, 1, 1, 1, 5, 17, 49, 213, 1189, 5181, 36191, 306061, 3589171 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.1.1.0.0.0.0` `.1.1.0.1.0.0.0.0` `.0.0.0.1.0.0.0.1` `.1.1.1.0.1.1.0.1` `.1.0.1.1.0.1.1.1` `.1.0.0.0.1.0.0.0` `.0.0.0.0.1.0.1.1` `.0.0.0.0.1.1.1.0`
	CROSSREFS	`Sequence in context: A083091 A082753 A000337 this_sequence A146045 A086866 A054452` `Adjacent sequences: A147257 A147258 A147259 this_sequence A147261 A147262 A147263`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.