A250595 Number of (n+2)X(2+2) 0..2 arrays with nondecreasing sum of every three consecutive values in every row and column

157464, 2099520, 27993600, 373248000, 2592000000, 18000000000, 125000000000, 590625000000, 2790703125000, 13186072265625, 48243443062500, 176506677018000, 645779095649856, 1968088672456704, 5997984525582336

Offset

1,1

Comments

Column 2 of A250601

Links

R. H. Hardin, Table of n, a(n) for n = 1..80

Example

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

Crossrefs

Sequence in context: A258073 A245681 A278862 * A253311 A253659 A253729

Adjacent sequences: A250592 A250593 A250594 * A250596 A250597 A250598

Keyword

nonn

Author

R. H. Hardin, Nov 25 2014

Status

approved