id:A146386 - 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 0110-1111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 2, 1, 4, 1, 6, 3, 16, 10, 59, 29, 271, 100, 1436, 387, 8334, 2276, 60777, 17581, 593102, 155034, 7275019, 1632582, 107601705, 20304423, 1902586023 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.0.0.0` `.0.0.1.1.1.1.0.0` `.0.1.0.1.1.0.1.0` `.0.1.1.0.0.1.1.0` `.0.1.1.0.0.1.1.0` `.0.1.0.1.1.0.1.0` `.0.0.1.1.1.1.0.0` `.0.0.0.0.0.0.0.0`
	CROSSREFS	`Sequence in context: A118275 A146938 A147418 this_sequence A128099 A108952 A088522` `Adjacent sequences: A146383 A146384 A146385 this_sequence A146387 A146388 A146389`
	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