id:A146130 - 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 3X2 zee 1,1 1,2 1,3 2,3 2,4 in any orientation.

+0
1

1, 1, 1, 1, 5, 17, 59, 325, 2193, 20593, 247017, 3816169, 76385445, 1998729963, 68606304143, 3070344768595, 178823377788539, 13583194771026533, 1345184891829774733 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.1.1.1.0` `.0.0.1.1.0.0.1.1` `.0.1.0.1.1.1.0.0` `.0.1.1.0.0.0.1.0` `.1.0.1.0.0.0.1.0` `.1.0.1.0.0.0.1.1` `.1.1.0.1.1.1.0.1` `.0.1.0.0.0.1.1.0`
	CROSSREFS	`Sequence in context: A149659 A149660 A149661 this_sequence A026619 A142956 A007483` `Adjacent sequences: A146127 A146128 A146129 this_sequence A146131 A146132 A146133`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 27 2008`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

AT&T Labs Research