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A253008
Number of nX5 nonnegative integer arrays with upper left 0 and lower right its king-move distance away minus 3 and every value increasing by 0 or 1 with every step right, diagonally se or down
1
4, 19, 54, 124, 250, 14795, 309990, 2853292, 14125312, 46481352, 116171792, 240747928, 438003360, 725775144, 1121905200, 1644235704, 2310608832, 3138866760, 4146851664, 5352405720, 6773371104, 8427589992, 10332904560
OFFSET
1,1
COMMENTS
Column 5 of A253011
LINKS
FORMULA
Empirical: a(n) = 2973696*n^3 - 70716096*n^2 + 570494664*n - 1560617160 for n>12
EXAMPLE
Some solutions for n=6
..0..0..0..0..0....0..0..0..0..0....0..0..0..0..1....0..1..1..1..1
..1..1..1..1..1....0..0..1..1..1....0..0..0..1..1....0..1..1..1..2
..1..1..1..1..1....0..0..1..1..1....0..0..1..1..1....1..1..1..1..2
..1..1..1..1..2....0..0..1..1..1....0..0..1..1..1....1..1..1..1..2
..1..2..2..2..2....0..0..1..2..2....0..1..1..1..2....1..1..1..1..2
..1..2..2..2..2....0..0..1..2..2....1..1..1..1..2....1..1..1..1..2
CROSSREFS
Sequence in context: A171354 A159833 A166808 * A186310 A122684 A122681
KEYWORD
nonn
AUTHOR
R. H. Hardin, Dec 25 2014
STATUS
approved