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A185902 1/8 the number of nX5 0..7 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors 0
15, 38731, 28967421, 32611077940, 30884279980274 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 5 of A185903

LINKS

Table of n, a(n) for n=1..5.

EXAMPLE

Some solutions for 3X5 with a(1,1)=0

..0..4..0..0..4....0..0..6..6..6....0..0..0..2..6....0..0..6..6..0

..0..4..6..0..4....4..4..4..0..0....0..4..4..2..6....4..4..4..0..0

..0..4..6..0..4....0..0..4..5..5....0..0..4..2..6....4..0..0..7..7

CROSSREFS

Sequence in context: A179106 A157643 A104682 * A013756 A078185 A096224

Adjacent sequences:  A185899 A185900 A185901 * A185903 A185904 A185905

KEYWORD

nonn

AUTHOR

R. H. Hardin Feb 06 2011

STATUS

approved

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Last modified February 20 06:26 EST 2019. Contains 320332 sequences. (Running on oeis4.)