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A147436 Number of n X n binary arrays with all ones connected only in a 1010-1111-1010 pattern in any orientation. 0
1, 1, 1, 9, 25, 89, 611, 6905, 105540, 1741627, 42117698, 1578103851, 82708302532, 5707546949411 (list; graph; refs; listen; history; internal format)
OFFSET

1,4

EXAMPLE

Maximal 8 X 8 example

.1.1.1.0.0.1.0.1

.0.1.0.0.1.1.1.1

.1.1.1.0.0.1.0.1

.0.1.0.0.0.0.0.0

.0.0.1.0.0.0.0.0

.0.1.1.1.0.1.0.1

.0.0.1.0.1.1.1.1

.0.1.1.1.0.1.0.1

CROSSREFS

Sequence in context: A147413 A066137 A147428 * A189118 A075067 A075064

Adjacent sequences:  A147433 A147434 A147435 * A147437 A147438 A147439

KEYWORD

nonn

AUTHOR

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

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Last modified February 16 16:45 EST 2012. Contains 205938 sequences.