A232781 Number of (n+1)X(2+1) 0..2 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing

110, 1140, 9315, 63536, 371914, 1940081, 9154020, 39669535, 159795143, 604317755, 2164002652, 7386075428, 24162161452, 76101692844, 231700113837

Offset

1,1

Comments

Column 2 of A232783

Links

Table of n, a(n) for n=1..15.

Example

Some solutions for n=4
..0..2..1....1..0..1....0..1..0....0..0..0....1..1..0....1..1..0....1..2..0
..2..2..1....0..1..1....1..1..0....1..1..0....0..2..0....2..1..1....1..0..1
..1..1..2....0..2..2....2..1..1....1..1..0....2..0..1....2..1..1....2..2..0
..0..2..2....1..2..2....0..1..2....2..1..2....0..2..1....1..1..2....0..1..2
..1..2..2....1..2..2....1..2..2....1..2..2....0..1..2....0..2..2....1..1..2

Crossrefs

Sequence in context: A283137 A213087 A284244 * A248468 A231967 A232339

Adjacent sequences: A232778 A232779 A232780 * A232782 A232783 A232784

Keyword

nonn

Author

R. H. Hardin, Nov 30 2013

Status

approved