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A146775 Number of n X n binary arrays with all ones connected only in a 0010-1010-1111 pattern in any orientation. 0
1, 1, 1, 17, 49, 205, 3001, 66003, 1489297, 39955495, 2140110575, 190524932103, 22346344948573 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,4

LINKS

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

EXAMPLE

Maximal 8 X 8 example

.1.1.1.1.0.0.0.0

.1.0.1.0.0.0.0.0

.0.0.1.0.0.0.1.1

.0.0.0.0.0.0.0.1

.1.0.0.0.0.1.1.1

.1.1.1.0.1.0.0.1

.1.0.0.0.1.0.1.0

.1.1.0.1.1.1.1.0

CROSSREFS

Sequence in context: A342609 A146799 A147201 * A147217 A147051 A146855

Adjacent sequences:  A146772 A146773 A146774 * A146776 A146777 A146778

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 04 2008

STATUS

approved

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Last modified May 24 02:40 EDT 2022. Contains 354003 sequences. (Running on oeis4.)