id:A147113 - OEIS Search Results

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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1000-1000-1111-0010 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 5, 23, 49, 83, 217, 723, 2201, 7571, 32315, 154081, 841887, 4456709, 26183699, 165757037 (list; graph; listen)

	OFFSET	`1,8`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.0.1.1.1.0` `.1.1.1.1.0.0.1.0` `.1.0.0.0.0.0.1.1` `.1.0.0.0.0.0.1.0` `.0.1.0.0.0.0.0.1` `.1.1.0.0.0.0.0.1` `.0.1.0.0.1.1.1.1` `.0.1.1.1.0.1.0.0`
	CROSSREFS	`Sequence in context: A057622 A055626 A127200 this_sequence A140811 A090686 A082277` `Adjacent sequences: A147110 A147111 A147112 this_sequence A147114 A147115 A147116`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 27 22:38 EST 2009. Contains 167602 sequences.