id:A147377 - 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 10000-11100-00111-00001 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 1, 11, 15, 241, 427, 4185, 8653, 87751, 203323, 3730869, 9866343, 357089469, 1093277721, 68995024703, 247016437881, 25144161711781, 105091314370945 (list; graph; listen)

	OFFSET	`1,9`
	EXAMPLE	`Maximal 9 X 9 example` `.0.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0.0` `.0.0.0.0.0.0.0.0.0` `.0.0.1.1.0.1.1.0.0` `.0.0.1.0.0.0.1.0.0` `.0.1.1.0.0.0.1.1.0` `.0.1.0.0.0.0.0.1.0` `.1.1.0.0.0.0.0.1.1`
	CROSSREFS	`Sequence in context: A068483 A115779 A147339 this_sequence A147333 A097156 A138791` `Adjacent sequences: A147374 A147375 A147376 this_sequence A147378 A147379 A147380`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified November 25 20:09 EST 2009. Contains 167514 sequences.

AT&T Labs Research