id:A147326 - 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 00100-00100-11111-00100 pattern in any orientation.

+0
1

1, 1, 1, 1, 5, 1, 9, 1, 54, 15, 1010, 305, 26482, 3993, 1090248, 85931, 79078189, 4847983, 11622838412, 605747926, 3166762458310, 124132744693, 1523768055043582, 41573048881668 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 9 X 9 example` `.0.0.0.0.1.0.0.0.0` `.0.0.1.1.1.1.1.0.0` `.0.1.0.0.1.0.0.1.0` `.0.1.0.0.1.0.0.1.0` `.1.1.1.1.0.1.1.1.1` `.0.1.0.0.1.0.0.1.0` `.0.1.0.0.1.0.0.1.0` `.0.0.1.1.1.1.1.0.0` `.0.0.0.0.1.0.0.0.0`
	CROSSREFS	`Sequence in context: A046580 A050358 A147319 this_sequence A143114 A103133 A098318` `Adjacent sequences: A147323 A147324 A147325 this_sequence A147327 A147328 A147329`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 5 23:38 EST 2009. Contains 170428 sequences.

AT&T Labs Research