id:A146063 - OEIS Search Results

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Number of n X n binary arrays with all ones connected only in a 5-point zee 1,1 2,1 2,2 2,3 3,3 in any orientation.

+0
1

1, 1, 5, 17, 53, 497, 10289, 196357, 5677027, 310742317, 27512226687, 3369038880519, 646981592661815, 203366474520147193 (list; graph; listen)

	OFFSET	`1,3`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.0.0.0.1.0` `.1.1.1.0.1.1.1.0` `.1.0.0.0.1.0.0.1` `.0.0.0.0.0.1.1.1` `.0.1.1.0.0.1.0.0` `.0.1.0.1.1.0.0.1` `.1.1.0.1.0.1.1.1` `.0.0.1.1.0.1.0.0`
	CROSSREFS	`Sequence in context: A154992 A097160 A149656 this_sequence A146006 A161470 A079363` `Adjacent sequences: A146060 A146061 A146062 this_sequence A146064 A146065 A146066`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Oct 26 2008`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.