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A147223 Number of n X n binary arrays with all ones connected only in a 11011-01110 pattern in any orientation. 0
1, 1, 1, 1, 25, 141, 844, 11391, 152742, 3160409, 110025582, 4931270353, 297917318524 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,5

LINKS

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

EXAMPLE

Maximal 8 X 8 example

.1.1.0.1.1.0.0.1

.0.1.1.1.0.0.1.1

.1.0.0.0.0.0.1.0

.1.1.0.0.0.0.1.1

.0.1.0.0.0.0.0.1

.1.1.0.0.0.0.0.0

.1.0.1.1.1.0.0.0

.0.1.1.0.1.1.0.0

CROSSREFS

Sequence in context: A113524 A147505 A147360 * A184057 A235713 A072471

Adjacent sequences: A147220 A147221 A147222 * A147224 A147225 A147226

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

STATUS

approved

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Last modified December 8 22:05 EST 2022. Contains 358698 sequences. (Running on oeis4.)