id:A147370 - OEIS Search Results

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Number of n X n binary arrays symmetric under horizontal and vertical reflection with all ones connected only in a 0111-1100-0111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 1, 14, 9, 82, 25, 666, 57, 4092, 377, 52105, 5329, 1098160, 73458, 31100564, 886631, 940187683, 17314150, 39465005389, 625360491 (list; graph; listen)

	OFFSET	`1,9`
	EXAMPLE	`Maximal 9 X 9 example` `.0.0.0.1.0.1.0.0.0` `.0.0.0.1.0.1.0.0.0` `.0.0.0.1.1.1.0.0.0` `.1.1.1.0.1.0.1.1.1` `.0.0.1.1.0.1.1.0.0` `.1.1.1.0.1.0.1.1.1` `.0.0.0.1.1.1.0.0.0` `.0.0.0.1.0.1.0.0.0` `.0.0.0.1.0.1.0.0.0`
	CROSSREFS	`Sequence in context: A070602 A086050 A128486 this_sequence A140739 A004503 A140810` `Adjacent sequences: A147367 A147368 A147369 this_sequence A147371 A147372 A147373`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research