id:A147248 - 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 11100-00100-00111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 7, 9, 31, 55, 549, 1047, 10041, 21681, 484881, 1255593, 40179283, 122480813, 7136007271, 25526356825, 2044413653787, 8531086609057, 1153670123416227, 5640169181500505, 1230123398597079731 (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` `.0.0.1.0.0.1.0.0` `.1.1.1.0.0.1.1.1` `.1.0.0.0.0.0.0.1` `.1.0.0.0.0.0.0.1`
	CROSSREFS	`Sequence in context: A066930 A154260 A085903 this_sequence A147186 A131623 A032011` `Adjacent sequences: A147245 A147246 A147247 this_sequence A147249 A147250 A147251`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 7 23:50 EST 2009. Contains 170430 sequences.

AT&T Labs Research