id:A147355 - 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 0110-0110-1111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 6, 9, 38, 25, 340, 57, 1815, 551, 17400, 8604, 372235, 122881, 11641876, 1647352, 359458545, 42868635, 13529698097, 1998622860 (list; graph; listen)

	OFFSET	`1,8`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.1.0.0` `.0.0.0.1.1.0.0.0` `.1.0.0.1.1.0.0.1` `.1.1.1.0.0.1.1.1` `.1.1.1.0.0.1.1.1` `.1.0.0.1.1.0.0.1` `.0.0.0.1.1.0.0.0` `.0.0.1.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A057397 A038263 A004989 this_sequence A154139 A126110 A098662` `Adjacent sequences: A147352 A147353 A147354 this_sequence A147356 A147357 A147358`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 16 17:18 EST 2009. Contains 170825 sequences.

AT&T Labs Research