id:A146000 - 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 3X3 plus 2,1 2,2 2,3 1,2 3,2.

+0
1

1, 1, 2, 3, 6, 13, 41, 134, 523, 2341, 13112, 85330, 657274, 5867785, 62935391, 796238629, 11963244988, 210625730574, 4398387347279, 108485411030401, 3172272297097957, 109373622124547205, 4459641160503515254 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.1.0.0.0.0` `.0.0.1.1.1.0.1.0` `.0.1.0.1.0.1.1.1` `.1.1.1.0.1.0.1.0` `.0.1.0.1.1.1.0.0` `.0.0.1.0.1.0.1.0` `.0.1.1.1.0.1.1.1` `.0.0.1.0.0.0.1.0`
	CROSSREFS	`Sequence in context: A065845 A137273 A135967 this_sequence A134737 A030733 A122839` `Adjacent sequences: A145997 A145998 A145999 this_sequence A146001 A146002 A146003`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 26 2008`

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Last modified November 25 13:47 EST 2009. Contains 167481 sequences.

AT&T Labs Research