id:A147186 - 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 11000-01110-00011 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 7, 9, 31, 55, 787, 1573, 22701, 53447, 1146545, 3177491, 131825683, 433244499, 34337767649, 134703759045, 16271838583281, 75677568824871, 14799633241575103, 81580228946827257 (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` `.0.0.1.0.0.1.0.0` `.0.1.1.0.0.1.1.0` `.0.1.0.0.0.0.1.0` `.1.1.0.0.0.0.1.1` `.1.0.0.0.0.0.0.1`
	CROSSREFS	`Sequence in context: A154260 A085903 A147248 this_sequence A131623 A032011 A083203` `Adjacent sequences: A147183 A147184 A147185 this_sequence A147187 A147188 A147189`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 18 21:37 EST 2009. Contains 171024 sequences.

AT&T Labs Research