id:A147339 - 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 0100-0100-1111-0010-0010 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 1, 1, 11, 15, 183, 305, 1851, 3761, 35145, 75363, 1670651, 4265463, 180681913, 541465905, 30900571055, 107421245147, 8457236647761, 34044967457309, 4310491231691799 (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` `.0.0.1.0.0.0.1.0.0` `.0.0.1.0.0.0.1.0.0` `.1.1.1.1.0.1.1.1.1` `.0.1.0.0.0.0.0.1.0` `.0.1.0.0.0.0.0.1.0`
	CROSSREFS	`Sequence in context: A032490 A068483 A115779 this_sequence A147377 A147333 A097156` `Adjacent sequences: A147336 A147337 A147338 this_sequence A147340 A147341 A147342`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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Last modified November 23 17:09 EST 2009. Contains 167438 sequences.

AT&T Labs Research