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A185538
1/6 the number of nX5 0..5 arrays with every element equal to exactly one or two of its horizontal and vertical neighbors
0
11, 12105, 4403225, 2241330570, 994633804270, 468362874353295
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OFFSET
1,1
COMMENTS
Column 5 of
A185540
LINKS
Table of n, a(n) for n=1..6.
EXAMPLE
Some solutions for 3X5 with a(1,1)=0
..0..0..0..4..4....0..0..3..3..5....0..0..0..3..4....0..0..0..0..1
..0..3..3..2..4....3..3..4..3..5....0..3..1..3..4....0..3..2..1..1
..0..0..0..2..2....0..0..4..4..5....0..3..1..5..5....0..3..2..5..5
CROSSREFS
Sequence in context:
A228533
A088103
A180561
*
A125545
A068137
A220979
Adjacent sequences:
A185535
A185536
A185537
*
A185539
A185540
A185541
KEYWORD
nonn
AUTHOR
R. H. Hardin
Jan 30 2011
STATUS
approved
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Last modified August 17 06:36 EDT 2024. Contains 375200 sequences. (Running on oeis4.)