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A146871 Number of n X n binary arrays with all ones connected only in a 1110-0100-0111 pattern in any orientation. 0
1, 1, 1, 17, 49, 129, 2097, 70513, 1502401, 23706401, 1391799697, 165323890129, 20222078940001, 2270785085201793 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

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

EXAMPLE

Maximal 8 X 8 example

.0.1.1.1.0.1.0.0

.0.1.0.0.0.1.1.1

.1.1.1.0.0.1.0.1

.0.0.0.0.0.0.0.1

.0.0.0.0.0.1.0.0

.1.1.1.0.0.1.0.1

.0.0.1.0.0.1.1.1

.0.1.1.1.0.0.0.1

CROSSREFS

Sequence in context: A124710 A113867 A049737 * A146791 A126371 A146799

Adjacent sequences:  A146868 A146869 A146870 * A146872 A146873 A146874

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

STATUS

approved

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Last modified October 19 11:09 EDT 2019. Contains 328216 sequences. (Running on oeis4.)