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A147495 Number of n X n binary arrays symmetric under 90 degree rotation with all ones connected only in a 11101-10111 pattern in any orientation. 0
1, 1, 1, 1, 1, 1, 1, 5, 15, 25, 49, 107, 263, 719, 2181 (list; graph; refs; listen; history; internal format)
OFFSET

1,8

EXAMPLE

Maximal 8 X 8 example

.1.0.1.1.1.0.1.1

.1.1.1.0.1.0.1.0

.0.0.0.0.0.0.1.1

.1.1.0.0.0.0.0.1

.1.0.0.0.0.0.1.1

.1.1.0.0.0.0.0.0

.0.1.0.1.0.1.1.1

.1.1.0.1.1.1.0.1

CROSSREFS

Sequence in context: A061443 A168010 A197072 * A147426 A100437 A067533

Adjacent sequences:  A147492 A147493 A147494 * A147496 A147497 A147498

KEYWORD

nonn

AUTHOR

R. H. Hardin (rhhardin(AT)att.net)

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Last modified February 16 10:26 EST 2012. Contains 205904 sequences.