id:A147098 - OEIS Search Results

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Number of n X n binary arrays symmetric under 180 degree rotation with all ones connected only in a 1000-1000-1000-1111 pattern in any orientation.

+0
1

1, 1, 1, 1, 3, 7, 13, 29, 143, 539, 2419, 11799, 70509, 422003, 3669313, 30560805, 384390343 (list; graph; listen)

	OFFSET	`1,5`
	EXAMPLE	`Maximal 8 X 8 example` `.0.0.1.1.1.1.0.0` `.0.0.0.0.0.1.0.0` `.1.1.1.1.0.1.0.1` `.1.0.0.0.0.1.0.1` `.1.0.1.0.0.0.0.1` `.1.0.1.0.1.1.1.1` `.0.0.1.0.0.0.0.0` `.0.0.1.1.1.1.0.0`
	CROSSREFS	`Sequence in context: A134270 A091565 A025249 this_sequence A109291 A062700 A136060` `Adjacent sequences: A147095 A147096 A147097 this_sequence A147099 A147100 A147101`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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