id:A147361 - 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 01110-11111 pattern in any orientation.

+0
1

1, 1, 1, 1, 15, 5, 62, 17, 510, 89, 27004, 5555, 1402086, 252517, 161324581, 16208566, 45647676851, 3528341313, 18214143607973, 1173259124198, 14342537261685270, 702406050500183 (list; graph; listen)

	OFFSET	`1,5`
	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` `.0.1.1.0.0.1.1.0` `.0.1.1.0.0.1.1.0` `.0.0.1.0.0.1.0.0`
	CROSSREFS	`Sequence in context: A040215 A147422 A147084 this_sequence A147224 A147060 A110791` `Adjacent sequences: A147358 A147359 A147360 this_sequence A147362 A147363 A147364`
	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