A233056 Number of (1+1)X(n+1) 0..3 arrays x(i,j) with row sums sum{j*x(i,j), j=1..n+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..1+1} nondecreasing

84, 517, 2504, 10259, 36681, 117336, 342631, 926325, 2343595, 5598526, 12716726, 27621995, 57655180, 116108839, 226372400, 428556841, 789816850, 1420177257, 2496385282, 4297171239, 7254711157, 12028735960, 19611652708, 31476118410

Offset

1,1

Comments

Row 1 of A233055

Links

R. H. Hardin, Table of n, a(n) for n = 1..35

Example

Some solutions for n=5
..2..2..3..3..1..2....2..0..0..1..3..1....0..0..0..1..1..1....1..3..3..1..1..0
..0..0..1..2..3..3....0..1..1..2..2..3....0..0..1..1..1..2....0..0..1..2..2..3

Crossrefs

Sequence in context: A064198 A329935 A233055 * A211260 A233053 A220203

Adjacent sequences: A233053 A233054 A233055 * A233057 A233058 A233059

Keyword

nonn

Author

R. H. Hardin, Dec 03 2013

Status

approved