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A147089 Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 10001-11111 pattern in any orientation. 0
1, 1, 1, 1, 1, 1, 1, 7, 17, 27, 59, 159, 377, 1061, 3282, 11263 (list; graph; refs; listen; history; internal format)
OFFSET

1,8

EXAMPLE

Maximal 8 X 8 example

.0.0.0.0.0.1.1.0

.1.1.1.1.1.0.1.0

.1.0.0.0.1.0.1.0

.0.1.1.0.0.0.1.0

.0.1.0.0.0.1.1.0

.0.1.0.1.0.0.0.1

.0.1.0.1.1.1.1.1

.0.1.1.0.0.0.0.0

CROSSREFS

Sequence in context: A043517 A160912 A017353 * A045575 A029532 A157417

Adjacent sequences:  A147086 A147087 A147088 * A147090 A147091 A147092

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net), Nov 04 2008

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Last modified February 16 17:48 EST 2012. Contains 205939 sequences.