id:A146589 - OEIS Search Results

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Number of n X n binary arrays symmetric about main diagonal with all ones connected only in a 0110-1111-0100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 9, 25, 67, 353, 1577, 17635, 202483, 2019113, 31077783, 570196985, 14569116993, 519350763601, 19917427060103, 942336566340751, 58234146292140447, 4596656821240313323, 484270777652058510713 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.1.0.0.0` `.0.0.0.1.1.1.0.0` `.0.0.0.1.1.0.1.0` `.0.1.1.0.1.0.1.1` `.1.1.1.1.0.1.1.1` `.0.1.0.0.1.0.1.0` `.0.0.1.1.1.1.0.0` `.0.0.0.1.1.0.0.0`
	CROSSREFS	`Sequence in context: A077118 A147392 A147318 this_sequence A146866 A126363 A036836` `Adjacent sequences: A146586 A146587 A146588 this_sequence A146590 A146591 A146592`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 7 08:40 EST 2009. Contains 170430 sequences.

AT&T Labs Research