id:A147212 - 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 1100-0111-0011 pattern in any orientation.

+0
1

1, 1, 1, 1, 3, 9, 23, 55, 315, 2117, 14227, 107639, 1242577, 18337443, 306941589, 6236872411, 166949397689, 5617277183949, 229023263912585, 11581498844555427 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.1.1.0.0` `.0.0.0.0.0.1.1.1` `.0.0.0.0.0.0.1.1` `.0.0.0.0.1.1.0.0` `.1.0.0.1.0.1.1.1` `.1.1.0.1.1.0.1.1` `.0.1.1.0.1.1.0.0` `.0.1.1.0.1.1.0.0`
	CROSSREFS	`Sequence in context: A005783 A146440 A147126 this_sequence A045883 A133654 A096574` `Adjacent sequences: A147209 A147210 A147211 this_sequence A147213 A147214 A147215`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.

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