id:A146404 - 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 1000-1111-0010 pattern in any orientation.

+0
1

1, 1, 1, 1, 5, 25, 63, 357, 1891, 12499, 113287, 1385821, 19264611, 381162993, 8433132619 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.0.0.1.0` `.0.0.0.1.0.0.1.1` `.0.0.0.1.1.0.1.0` `.0.0.0.1.0.1.1.0` `.0.1.1.0.1.0.0.0` `.0.1.0.1.1.0.0.0` `.1.1.0.0.1.0.0.0` `.0.1.0.0.1.1.0.0`
	CROSSREFS	`Sequence in context: A152734 A080856 A060820 this_sequence A054994 A108403 A007058` `Adjacent sequences: A146401 A146402 A146403 this_sequence A146405 A146406 A146407`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified November 25 08:46 EST 2009. Contains 167481 sequences.