id:A147058 - 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 0100-1101-0111 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 17, 47, 213, 1235, 4969, 37883, 407179, 4619435, 65431997, 1207923913, 24951197669, 667166329171 (list; graph; listen)

	OFFSET	`1,6`
	EXAMPLE	`Maximal 8 X 8 example` `.0.1.1.0.0.0.1.1` `.0.1.0.0.0.0.0.1` `.0.1.1.1.0.1.1.1` `.0.0.1.0.0.0.1.0` `.0.1.0.0.0.1.0.0` `.1.1.1.0.1.1.1.0` `.1.0.0.0.0.0.1.0` `.1.1.0.0.0.1.1.0`
	CROSSREFS	`Sequence in context: A061722 A039949 A155841 this_sequence A083296 A159850 A031122` `Adjacent sequences: A147055 A147056 A147057 this_sequence A147059 A147060 A147061`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net), Nov 04 2008`

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Last modified December 10 12:37 EST 2009. Contains 170569 sequences.