id:A146829 - 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 1000-1111-0100-0100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 5, 29, 45, 85, 149, 631, 1787, 7789, 27255, 169603, 656441, 4413871, 19468207, 157401839 (list; graph; listen)

	OFFSET	`1,8`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.1.0.0.1.0` `.1.1.1.1.0.0.1.0` `.0.0.1.0.1.1.1.0` `.0.0.1.0.0.0.1.1` `.1.1.0.0.0.1.0.0` `.0.1.1.1.0.1.0.0` `.0.1.0.0.1.1.1.1` `.0.1.0.0.1.0.0.0`
	CROSSREFS	`Sequence in context: A117746 A156053 A081116 this_sequence A141374 A107003 A147153` `Adjacent sequences: A146826 A146827 A146828 this_sequence A146830 A146831 A146832`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 9 18:50 EST 2009. Contains 170568 sequences.