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A147338 Number of n X n binary arrays with all ones connected only in a 0100-0100-1111-0010-0010 pattern in any orientation. 0
1, 1, 1, 1, 9, 25, 57, 341, 3079, 34841, 488119, 8511553, 213350177, 7487333931, 351333499149 (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

.0.0.1.0.0.0.0.0

.0.0.1.1.1.0.0.0

.1.1.1.0.0.0.0.0

.0.0.1.0.0.0.1.0

.0.0.0.0.0.0.1.0

.0.0.0.0.1.1.1.1

.0.0.0.0.0.1.0.0

.0.0.0.0.0.1.0.0

CROSSREFS

Sequence in context: A099971 A124702 A113829 * A147325 A147368 A147497

Adjacent sequences:  A147335 A147336 A147337 * A147339 A147340 A147341

KEYWORD

nonn

AUTHOR

R. H. Hardin

STATUS

approved

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Last modified October 4 19:10 EDT 2022. Contains 357239 sequences. (Running on oeis4.)