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A250860
Number of (n+2)X(n+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column
1
262144, 128000000, 250000000000, 1953125000000000, 5744580078125000000, 43254022503125000000000, 833747762130149888000000000, 6537811332601933992442920960000, 104624647058119410496536003666247680
OFFSET
1,1
COMMENTS
Diagonal of A250868
LINKS
EXAMPLE
Some solutions for n=1
..0..2..3....2..0..3....0..2..1....0..3..0....0..0..1....2..0..2....0..1..1
..3..3..3....0..3..2....2..2..3....3..0..2....2..3..3....2..1..2....3..2..2
..2..1..0....3..3..1....2..2..1....1..3..1....3..3..2....2..3..2....3..0..0
CROSSREFS
Sequence in context: A016785 A017490 A017622 * A016809 A018879 A016905
KEYWORD
nonn
AUTHOR
R. H. Hardin, Nov 28 2014
STATUS
approved