id:A147429 - 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 1010-1111-0101 pattern in any orientation.

+0
1

1, 1, 1, 1, 1, 1, 9, 11, 141, 257, 1611, 3315, 36853, 86889, 1683453, 4577119, 233675247, 765781809, 58076270521, 224796831393, 21043320110887, 95183435001619, 14150257177280215, 74929440978446429, 19854826390795440105 (list; graph; listen)

	OFFSET	`1,7`
	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` `.0.0.0.0.0.0.0.0` `.0.1.1.0.0.1.1.0` `.1.1.0.0.0.0.1.1` `.0.1.1.0.0.1.1.0` `.1.1.0.0.0.0.1.1`
	CROSSREFS	`Sequence in context: A027727 A019328 A119786 this_sequence A147461 A146366 A146603` `Adjacent sequences: A147426 A147427 A147428 this_sequence A147430 A147431 A147432`
	KEYWORD	`nonn`
	AUTHOR	`Ron Hardin (rhhardin(AT)att.net)`

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

AT&T Labs Research