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A233048 Number of (n+1)X(3+1) 0..2 arrays x(i,j) with row sums sum{j*x(i,j), j=1..3+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing 0
316, 8494, 205965, 4406966, 82425923, 1386551033, 21335158650, 304189186996 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 3 of A233049

LINKS

Table of n, a(n) for n=1..8.

EXAMPLE

Some solutions for n=2

..0..0..1..1....2..1..1..2....2..2..0..1....0..2..1..0....2..1..1..1

..0..0..2..2....0..1..2..2....1..0..2..1....0..2..1..1....2..0..2..2

..0..0..2..2....1..1..2..2....0..1..1..2....0..0..1..2....0..1..2..2

CROSSREFS

Sequence in context: A237561 A264540 A253689 * A101112 A012871 A142003

Adjacent sequences:  A233045 A233046 A233047 * A233049 A233050 A233051

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 03 2013

STATUS

approved

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Last modified January 19 01:11 EST 2021. Contains 340262 sequences. (Running on oeis4.)