id:A146444 - 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 1100-0100-0111 pattern in any orientation.

+0
1

1, 1, 1, 1, 5, 17, 61, 319, 1657, 10301, 78887, 808895, 10915803, 187729525, 3870401483 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.1.1.1.0` `.1.0.0.0.0.0.1.0` `.1.0.0.0.0.0.1.1` `.1.1.1.0.0.1.0.0` `.0.0.1.0.0.1.1.1` `.1.1.0.0.0.0.0.1` `.0.1.0.0.0.0.0.1` `.0.1.1.1.0.0.0.0`
	CROSSREFS	`Sequence in context: A149664 A149665 A149666 this_sequence A128073 A051736 A099528` `Adjacent sequences: A146441 A146442 A146443 this_sequence A146445 A146446 A146447`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 13 23:45 EST 2009. Contains 170824 sequences.