id:A146245 - 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 110-111-010 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 3, 3, 5, 5, 11, 11, 29, 29, 171, 171, 783, 783, 4399, 4399, 33371, 33371, 348951, 348951, 4490023, 4490023, 67743969, 67743969, 1262306965, 1262306965 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.1.1.0.0.0.0.1.1` `.1.1.1.0.0.1.1.1` `.0.1.0.0.0.0.1.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.1.0.0.0.0.1.0` `.1.1.1.0.0.1.1.1` `.1.1.0.0.0.0.1.1`
	CROSSREFS	`Sequence in context: A077893 A077953 A077980 this_sequence A161220 A032022 A147198` `Adjacent sequences: A146242 A146243 A146244 this_sequence A146246 A146247 A146248`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified November 25 14:49 EST 2009. Contains 167514 sequences.

AT&T Labs Research