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A147075 Number of n X n binary arrays with all ones connected only in a 10000-11111-10000 pattern in any orientation. 0
1, 1, 1, 1, 13, 65, 313, 2325, 24995, 319309, 7251986, 214577039, 8040409512 (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

.1.0.0.0.0.1.1.1

.1.1.1.1.1.0.1.0

.1.0.0.0.0.0.1.0

.0.1.0.0.0.0.1.0

.0.1.0.0.0.0.1.0

.0.1.0.0.0.0.0.1

.0.1.0.1.1.1.1.1

.1.1.1.0.0.0.0.1

CROSSREFS

Sequence in context: A153793 A067160 A147067 * A268777 A109727 A041320

Adjacent sequences:  A147072 A147073 A147074 * A147076 A147077 A147078

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

STATUS

approved

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Last modified October 21 03:24 EDT 2019. Contains 328291 sequences. (Running on oeis4.)