id:A146441 - 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 1100-0100-0111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 3, 9, 19, 39, 119, 357, 921, 3063, 15421, 82217, 416323, 2370803, 16101191, 113312875, 843888839, 7373458463, 76576709025 (list; graph; listen)

	OFFSET	`1,8`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.1.1.0.0.0.0` `.1.0.0.1.0.0.0.0` `.1.0.0.1.1.0.0.0` `.1.1.1.0.0.1.0.0` `.0.0.1.0.0.1.1.1` `.0.0.0.1.1.0.0.1` `.0.0.0.0.1.0.0.1` `.0.0.0.0.1.1.1.0`
	CROSSREFS	`Sequence in context: A038163 A146819 A147213 this_sequence A147341 A160704 A146662` `Adjacent sequences: A146438 A146439 A146440 this_sequence A146442 A146443 A146444`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

AT&T Labs Research