A250867 Number of (n+2)X(7+2) 0..3 arrays with nondecreasing sum of every three consecutive values in every row and column

512000000000, 343000000000000, 229783203125000000, 153936794281005859375, 27033764064453125000000, 4747561509943000000000000, 833747762130149888000000000, 61770704200698544902144000000

Offset

1,1

Comments

Column 7 of A250868

Links

R. H. Hardin, Table of n, a(n) for n = 1..17

Example

Some solutions for n=1
..0..0..0..0..0..0..0..0..0....0..0..0..0..0..0..0..0..0
..0..0..0..0..0..0..0..2..2....0..0..0..0..0..2..0..0..2
..0..1..1..0..1..1..1..1..1....0..0..1..0..3..2..3..3..2

Crossrefs

Sequence in context: A209833 A255578 A239921 * A104303 A306500 A306891

Adjacent sequences: A250864 A250865 A250866 * A250868 A250869 A250870

Keyword

nonn

Author

R. H. Hardin, Nov 28 2014

Status

approved