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A147115 Number of n X n binary arrays with all ones connected only in a 1000-1000-1111-0100 pattern in any orientation. 0
1, 1, 1, 9, 33, 105, 733, 10679, 271641, 6329349, 226356533, 13139244743, 1208391296607 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

Table of n, a(n) for n=1..13.

EXAMPLE

Maximal 8 X 8 example

.0.1.0.0.1.1.1.0

.1.1.1.1.0.0.1.1

.1.0.0.0.0.0.1.0

.1.0.0.0.0.0.1.0

.0.1.0.0.0.0.0.1

.0.1.0.0.0.0.0.1

.1.1.0.0.1.1.1.1

.0.1.1.1.0.0.1.0

CROSSREFS

Sequence in context: A147269 A147123 A147107 * A147261 A197359 A147155

Adjacent sequences:  A147112 A147113 A147114 * A147116 A147117 A147118

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

STATUS

approved

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Last modified May 24 12:01 EDT 2022. Contains 354033 sequences. (Running on oeis4.)