id:A146743 - OEIS Search Results

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Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 1110-1111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 13, 29, 57, 123, 437, 1523, 7643, 32273, 153925, 786845, 5340469, 36899655, 318800081, 2591600741, 26626203639, 272703572385 (list; graph; listen)

	OFFSET	`1,7`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.0.1.1.1.1.0` `.1.0.0.1.1.1.0.0` `.1.1.0.0.0.0.0.0` `.1.1.0.0.0.0.1.1` `.1.1.0.0.0.0.1.1` `.0.0.0.0.0.0.1.1` `.0.0.1.1.1.0.0.1` `.0.1.1.1.1.0.0.0`
	CROSSREFS	`Sequence in context: A098062 A094481 A045637 this_sequence A065546 A075636 A139838` `Adjacent sequences: A146740 A146741 A146742 this_sequence A146744 A146745 A146746`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified November 24 23:16 EST 2009. Contains 167481 sequences.

AT&T Labs Research