id:A146778 - OEIS Search Results

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Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0010-1010-1111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 5, 17, 43, 145, 633, 4131, 31831, 267243, 2665825, 33726547, 521722083, 9834245987, 228276099483, 6476476460303, 221310304612835, 9127636122908961 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.1.0.0` `.0.0.1.0.1.0.0.0` `.1.1.0.0.1.0.0.1` `.1.0.0.0.0.1.1.1` `.1.1.1.0.0.0.0.1` `.1.0.0.1.0.0.1.1` `.0.0.0.1.0.1.0.0` `.0.0.1.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A100662 A046916 A089527 this_sequence A146858 A146183 A163424` `Adjacent sequences: A146775 A146776 A146777 this_sequence A146779 A146780 A146781`
	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