id:A147144 - OEIS Search Results

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Number of n X n binary arrays symmetric about the diagonal and under 90 degree rotation with all ones connected only in a 1000-1100-0110-0011 pattern in any orientation.

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1

1, 1, 1, 1, 1, 1, 1, 1, 3, 3, 7, 7, 17, 17, 39, 39, 127, 127, 681, 681, 3913, 3913, 21369, 21369, 147701, 147701, 1344439, 1344439, 15252227 (list; graph; listen)

	OFFSET	`1,9`
	EXAMPLE	`Maximal 9 X 9 example` `.0.0.0.1.0.1.0.0.0` `.0.0.1.1.0.1.1.0.0` `.0.1.1.0.0.0.1.1.0` `.1.1.0.0.0.0.0.1.1` `.0.0.0.0.0.0.0.0.0` `.1.1.0.0.0.0.0.1.1` `.0.1.1.0.0.0.1.1.0` `.0.0.1.1.0.1.1.0.0` `.0.0.0.1.0.1.0.0.0`
	CROSSREFS	`Sequence in context: A146035 A147190 A146450 this_sequence A152113 A146149 A070925` `Adjacent sequences: A147141 A147142 A147143 this_sequence A147145 A147146 A147147`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research