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A146232 Number of n X n binary arrays with all ones connected only in a 110-111-001 pattern in any orientation. 0
1, 1, 9, 33, 113, 1393, 59521, 1585365, 62771429, 6390256297, 1169289395909, 252401149719293, 93670173728309347 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,3

LINKS

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

EXAMPLE

Maximal 8 X 8 example

.0.1.1.0.0.1.1.0

.1.1.1.0.0.0.1.1

.1.0.0.1.0.0.1.1

.0.1.1.1.0.1.0.0

.0.1.1.0.0.1.1.1

.1.0.0.1.1.0.1.1

.1.1.1.0.1.1.0.0

.0.1.1.0.1.1.0.0

CROSSREFS

Sequence in context: A147261 A197359 A147155 * A146180 A221447 A147147

Adjacent sequences:  A146229 A146230 A146231 * A146233 A146234 A146235

KEYWORD

nonn

AUTHOR

R. H. Hardin

STATUS

approved

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Last modified May 16 10:04 EDT 2022. Contains 353700 sequences. (Running on oeis4.)