id:A146286 - 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 111-110-111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 5, 13, 29, 41, 99, 219, 653, 1719, 7125, 30115, 144385, 515791, 2502679, 10851481, 66672841, 362202203, 2693814149, 19415112859, 179313023913, 1385523385051 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.1.1.1.0` `.1.0.1.0.1.1.0.0` `.1.1.1.0.1.1.1.0` `.1.1.1.0.0.0.0.0` `.0.0.0.0.0.1.1.1` `.0.1.1.1.0.1.1.1` `.0.0.1.1.0.1.0.1` `.0.1.1.1.0.0.0.0`
	CROSSREFS	`Sequence in context: A158756 A159351 A163251 this_sequence A065374 A130066 A095085` `Adjacent sequences: A146283 A146284 A146285 this_sequence A146287 A146288 A146289`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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

AT&T Labs Research