id:A146786 - 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 0100-1100-1111 pattern in any orientation.

+0
1

1, 1, 1, 1, 3, 9, 27, 85, 337, 1791, 13253, 115267, 1169733, 14374957, 216583105, 4102635811, 98419728413, 2904752917775, 103834255604223, 4525458320487677 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.1.1.0.0.0` `.0.0.1.1.1.0.0.0` `.0.1.0.0.1.0.0.0` `.1.1.0.0.1.0.1.1` `.1.1.1.1.0.1.1.1` `.0.0.0.0.1.0.0.1` `.0.0.0.1.1.0.0.1` `.0.0.0.1.1.1.1.0`
	CROSSREFS	`Sequence in context: A099786 A131428 A099787 this_sequence A151029 A147242 A148924` `Adjacent sequences: A146783 A146784 A146785 this_sequence A146787 A146788 A146789`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 20 00:58 EST 2009. Contains 171054 sequences.

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