A250593 Number of (n+2)X(n+2) 0..2 arrays with nondecreasing sum of every three consecutive values in every row and column

19683, 2099520, 622080000, 512000000000, 175000000000000, 117236328125000000, 153936794281005859375, 95375119619390625000000, 97682483345284168128000000, 165381614442044595841154678784

Offset

1,1

Comments

Diagonal of A250601

Links

R. H. Hardin, Table of n, a(n) for n = 1..12

Example

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

Crossrefs

Sequence in context: A250459 A250455 A016761 * A016773 A016845 A016893

Adjacent sequences: A250590 A250591 A250592 * A250594 A250595 A250596

Keyword

nonn

Author

R. H. Hardin, Nov 25 2014

Status

approved