id:A146406 - 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 1000-1111-0100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 17, 21, 669, 1435, 18911, 48821, 1583279, 5119381, 552048095, 2284826569, 405071372171, 2114490125109, 687967929796833, 4506360355608779, 2940096330466050229, 24177384329604438229 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0` `.0.1.0.0.0.0.1.0` `.0.1.0.0.0.0.1.0` `.1.1.0.0.0.0.1.1` `.0.1.1.0.0.1.1.0`
	CROSSREFS	`Sequence in context: A146848 A146611 A146398 this_sequence A066470 A054478 A136198` `Adjacent sequences: A146403 A146404 A146405 this_sequence A146407 A146408 A146409`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 20 16:54 EST 2009. Contains 171081 sequences.

AT&T Labs Research