id:A147354 - OEIS Search Results

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Number of n X n binary arrays symmetric under horizontal reflection with all ones connected only in a 0110-0110-1111 pattern in any orientation.

+0
1

1, 1, 1, 5, 1, 9, 9, 64, 169, 2060, 1751, 117702, 30379, 5432661, 2655229, 490197084, 609857434, 163861816417, 142845961897, 117181491908400, 48229913065428, 107790147306614349, 44573112130566379, 164640449018425801557 (list; graph; listen)

	OFFSET	`1,4`
	EXAMPLE	`Maximal 8 X 8 example` `.1.0.0.0.0.0.0.1` `.1.1.1.0.0.1.1.1` `.1.1.1.0.0.1.1.1` `.1.0.0.0.0.0.0.1` `.0.0.1.0.0.1.0.0` `.1.1.1.0.0.1.1.1` `.1.1.1.0.0.1.1.1` `.0.0.1.0.0.1.0.0`
	CROSSREFS	`Sequence in context: A021662 A082020 A147406 this_sequence A134233 A100542 A147404` `Adjacent sequences: A147351 A147352 A147353 this_sequence A147355 A147356 A147357`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.

AT&T Labs Research