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A186624
Number of (n+2)X5 0..2 arrays with 3X3 subblock sums nondecreasing rightwards and downwards.
0
5109075, 313250283, 19192412328, 1114156913743, 40638068592052, 1479413089672909, 53067946949076948, 1364942987805378749
OFFSET
1,1
COMMENTS
Column 3 of A186625
EXAMPLE
Some solutions for 4X5
..0..0..0..2..1....0..0..2..0..2....0..0..1..0..0....0..0..1..0..0
..0..0..1..1..2....0..0..0..2..1....0..0..0..0..1....0..0..0..2..2
..0..0..0..0..0....0..0..2..2..0....0..0..0..2..2....0..0..2..2..1
..0..0..0..2..2....0..0..2..2..2....0..0..2..0..1....0..0..1..2..2
CROSSREFS
Sequence in context: A015363 A234785 A206136 * A157844 A263039 A241607
KEYWORD
nonn
AUTHOR
R. H. Hardin, Feb 24 2011
STATUS
approved