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A147481 Number of n X n binary arrays with all ones connected only in a 11011-01110-00100 pattern in any orientation. 0
1, 1, 1, 1, 13, 49, 332, 3073, 36531, 597879, 14127501, 454449581, 20354788308, 1267965991925 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..14.

EXAMPLE

Maximal 8 X 8 example

.0.0.0.1.1.0.1.1

.0.0.0.0.1.1.1.0

.0.0.0.0.0.1.0.1

.1.0.0.0.0.0.1.1

.1.1.0.0.0.1.1.0

.0.1.1.0.1.0.1.1

.1.1.0.1.1.1.0.1

.1.0.1.1.0.1.1.0

CROSSREFS

Sequence in context: A146782 A320469 A074014 * A245138 A197663 A274784

Adjacent sequences:  A147478 A147479 A147480 * A147482 A147483 A147484

KEYWORD

nonn

AUTHOR

R. H. Hardin

STATUS

approved

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Last modified January 16 19:48 EST 2022. Contains 350376 sequences. (Running on oeis4.)