id:A147500 - 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 1110-0110-0111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 3, 9, 19, 37, 159, 849, 4243, 19707, 136969, 1272775, 12839957 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.0.0.0` `.0.0.0.1.1.0.0.0` `.1.0.0.1.1.1.0.0` `.1.1.1.0.0.0.0.0` `.1.1.1.0.0.0.0.0` `.0.0.1.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0`
	CROSSREFS	`Sequence in context: A014540 A146694 A146050 this_sequence A115238 A005994 A080010` `Adjacent sequences: A147497 A147498 A147499 this_sequence A147501 A147502 A147503`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 10 00:48 EST 2009. Contains 170565 sequences.