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A233054 Number of (n+1)X(2+1) 0..3 arrays x(i,j) with row sums sum{j*x(i,j), j=1..2+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing 0
517, 12943, 263629, 4493649, 67014557, 897520231, 10981954879, 124582399369, 1325214468843 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A233055

LINKS

Table of n, a(n) for n=1..9.

EXAMPLE

Some solutions for n=2

..0..3..1....0..1..3....2..0..2....0..2..2....3..0..2....3..0..1....3..3..0

..0..1..3....0..3..3....0..3..2....1..0..3....2..1..3....3..0..1....0..0..3

..0..3..3....2..2..3....1..2..3....2..3..2....1..3..2....0..2..3....1..1..3

CROSSREFS

Sequence in context: A168188 A116013 A225913 * A235305 A253308 A043380

Adjacent sequences: A233051 A233052 A233053 * A233055 A233056 A233057

KEYWORD

nonn

AUTHOR

R. H. Hardin, Dec 03 2013

STATUS

approved

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Last modified January 30 09:28 EST 2023. Contains 359944 sequences. (Running on oeis4.)