id:A146779 - OEIS Search Results

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Number of n X n binary arrays symmetric about both diagonal and antidiagonal with all ones connected only in a 0010-1010-1111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 3, 5, 15, 25, 43, 101, 369, 1113, 5539, 16529, 75239, 298319, 1804759, 9458781, 72980139 (list; graph; listen)

	OFFSET	`1,8`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.1.0.0` `.0.0.0.1.0.1.0.0` `.1.0.0.1.0.0.1.1` `.1.1.1.0.0.0.0.1` `.1.0.0.0.0.1.1.1` `.1.1.0.0.1.0.0.1` `.0.0.1.0.1.0.0.0` `.0.0.1.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A003549 A018404 A053928 this_sequence A146859 A146835 A146795` `Adjacent sequences: A146776 A146777 A146778 this_sequence A146780 A146781 A146782`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 15 00:47 EST 2009. Contains 170825 sequences.

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