id:A146592 - 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 0110-1111-0100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 3, 23, 47, 75, 181, 675, 3025, 16403, 71953, 340893, 1986607, 14754733, 121306057, 1066980245, 9641071515, 101852566849, 1271193446821 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.1.0.0.0` `.0.0.1.1.1.1.0.0` `.0.1.0.1.1.0.1.0` `.1.1.1.0.0.1.1.0` `.0.1.1.0.0.1.1.1` `.0.1.0.1.1.0.1.0` `.0.0.1.1.1.1.0.0` `.0.0.0.1.0.0.0.0`
	CROSSREFS	`Sequence in context: A105854 A160022 A060651 this_sequence A107169 A032003 A031907` `Adjacent sequences: A146589 A146590 A146591 this_sequence A146593 A146594 A146595`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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

AT&T Labs Research