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A147392 Number of n X n binary arrays with all ones connected only in a 1000-1000-1111-0001-0001 pattern in any orientation. 0
1, 1, 1, 1, 9, 25, 65, 305, 2297, 32289, 404565, 5435093, 101023199, 2823418681, 117113399963 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

Table of n, a(n) for n=1..15.

EXAMPLE

Maximal 8 X 8 example

.0.0.1.1.1.0.0.0

.0.0.1.0.0.0.0.0

.0.0.1.0.0.0.0.0

.1.1.1.0.0.0.0.1

.0.0.0.0.0.0.0.1

.0.0.0.0.1.1.1.1

.0.0.0.0.1.0.0.0

.0.0.0.0.1.0.0.0

CROSSREFS

Sequence in context: A077118 A242116 A209530 * A147318 A146589 A146866

Adjacent sequences:  A147389 A147390 A147391 * A147393 A147394 A147395

KEYWORD

nonn

AUTHOR

R. H. Hardin

STATUS

approved

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Last modified November 16 20:06 EST 2019. Contains 329204 sequences. (Running on oeis4.)