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A146570 Number of n X n binary arrays with all ones connected only in a 0100-0100-1111 pattern in any orientation. 0
1, 1, 1, 17, 57, 369, 6075, 152201, 4520107, 199476793, 15394540581, 1933912591517, 348262962157565 (list; graph; refs; listen; history; text; internal format)
OFFSET
1,4
LINKS
EXAMPLE
Maximal 8 X 8 example
.1.1.1.1.0.0.0.1
.0.1.0.0.0.1.1.1
.0.1.0.0.0.0.0.1
.1.0.0.0.0.1.0.1
.1.1.1.0.0.1.0.0
.1.0.0.1.0.1.1.1
.1.0.0.1.0.1.0.0
.0.1.1.1.1.0.0.0
CROSSREFS
Sequence in context: A146690 A146437 A146783 * A147209 A147239 A264473
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 04 2008
STATUS
approved

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Last modified March 28 20:05 EDT 2024. Contains 371254 sequences. (Running on oeis4.)