id:A146371 - 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 0100-1111-0010 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 3, 13, 25, 41, 95, 287, 1007, 4035, 15127, 64629, 303257, 1705229, 10297463, 68501897, 489679427, 4005352321, 35909136431, 368495419925, 4031093827951, 49953339711585 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.0.0.0.0.1.0` `.1.1.0.0.1.1.1.1` `.0.1.1.0.0.1.0.0` `.0.1.0.0.0.0.0.0` `.0.0.0.0.0.0.1.0` `.0.0.1.0.0.1.1.0` `.1.1.1.1.0.0.1.1` `.0.1.0.0.0.0.1.0`
	CROSSREFS	`Sequence in context: A121718 A144826 A030552 this_sequence A146379 A056714 A120074` `Adjacent sequences: A146368 A146369 A146370 this_sequence A146372 A146373 A146374`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified November 29 12:46 EST 2009. Contains 167659 sequences.

AT&T Labs Research