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A146256 Number of n X n binary arrays with all ones connected only in a 110-111-101 pattern in any orientation. 0
1, 1, 9, 33, 81, 609, 23953, 643873, 12050113, 545308145, 74642042017, 10960166126121, 1660619212003185, 467825703162664825 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

EXAMPLE

Maximal 8 X 8 example

.1.0.1.0.0.1.0.1

.1.1.1.0.0.1.1.1

.1.1.0.0.0.0.1.1

.0.0.1.0.1.0.0.0

.0.0.1.1.1.0.0.0

.1.1.0.1.1.0.1.1

.1.1.1.0.0.1.1.0

.1.0.1.0.0.1.1.1

CROSSREFS

Sequence in context: A147170 A146823 A147027 * A005920 A020324 A146171

Adjacent sequences:  A146253 A146254 A146255 * A146257 A146258 A146259

KEYWORD

nonn

AUTHOR

R. H. Hardin

STATUS

approved

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Last modified June 25 12:55 EDT 2022. Contains 354851 sequences. (Running on oeis4.)