id:A146587 - 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 0110-1111-0100 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 17, 21, 549, 1019, 12531, 32807, 1040313, 3290973, 362333049, 1474237921, 266711200491, 1364122350485, 428284962927597, 2769561073160279, 1886319046954861837, 15405192560843785699, 21883415341502162253677 (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` `.1.1.0.0.0.0.1.1` `.1.1.1.0.0.1.1.1` `.0.1.0.0.0.0.1.0`
	CROSSREFS	`Sequence in context: A147052 A147132 A146840 this_sequence A147256 A147163 A147179` `Adjacent sequences: A146584 A146585 A146586 this_sequence A146588 A146589 A146590`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 27 14:50 EST 2009. Contains 167570 sequences.

AT&T Labs Research