id:A147406 - 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 1001-1001-1111 pattern in any orientation.

+0
1

1, 1, 1, 5, 1, 9, 9, 43, 127, 501, 1169, 21077, 14501, 1245641, 426195, 52418221, 46737495, 4157184667, 7896602235, 878958425775, 1373529372451, 470697855207829, 348267628548895, 343015836691596183 (list; graph; listen)

	OFFSET	`1,4`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.1.0.0` `.0.0.1.0.0.1.0.0` `.0.0.1.0.0.1.0.0` `.0.0.0.0.0.0.0.0` `.1.1.1.0.0.1.1.1` `.0.0.1.0.0.1.0.0` `.0.0.1.0.0.1.0.0` `.1.1.1.0.0.1.1.1`
	CROSSREFS	`Sequence in context: A114594 A021662 A082020 this_sequence A147354 A134233 A100542` `Adjacent sequences: A147403 A147404 A147405 this_sequence A147407 A147408 A147409`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified December 11 12:57 EST 2009. Contains 170656 sequences.

AT&T Labs Research