id:A146186 - OEIS Search Results

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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 110-111-100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 3, 17, 39, 67, 157, 683, 2593, 13101, 70047, 421791, 2622253, 19003451, 153761107, 1499143675, 15781975001, 199989123849, 2755107112873 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.0.0.0.1.1.0` `.1.1.0.0.0.1.1.1` `.1.1.1.0.0.1.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.0.1.0.0.1.1.1` `.1.1.1.0.0.0.1.1` `.0.1.1.0.0.0.1.0`
	CROSSREFS	`Sequence in context: A106896 A097938 A073162 this_sequence A107147 A049078 A146821` `Adjacent sequences: A146183 A146184 A146185 this_sequence A146187 A146188 A146189`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 27 2008`

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

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