id:A146673 - OEIS Search Results

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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1100-0111-0110 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 17, 51, 293, 1459, 7621, 56935, 702993, 8365419, 152139369, 2979251133 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.1.1.0` `.0.1.0.0.1.1.1.0` `.1.1.0.0.0.0.1.1` `.1.1.1.0.0.1.0.0` `.0.0.1.0.0.1.1.1` `.1.1.0.0.0.0.1.1` `.0.1.1.1.0.0.1.0` `.0.1.1.0.0.0.0.0`
	CROSSREFS	`Sequence in context: A160076 A003124 A005570 this_sequence A078757 A041560 A041562` `Adjacent sequences: A146670 A146671 A146672 this_sequence A146674 A146675 A146676`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.