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A232679 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*x(i,j), i=1..n+1} nondecreasing 0
562, 13266, 252071, 4171291, 60818628, 797893589, 9620349150, 107866360242, 1136104293959, 11345364093714, 108132910877094, 989116298684010 (list; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

Column 2 of A232680

LINKS

Table of n, a(n) for n=1..12.

EXAMPLE

Some solutions for n=2

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

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

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

CROSSREFS

Sequence in context: A252344 A250976 A209907 * A135437 A142759 A187849

Adjacent sequences:  A232676 A232677 A232678 * A232680 A232681 A232682

KEYWORD

nonn

AUTHOR

R. H. Hardin, Nov 27 2013

STATUS

approved

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Last modified August 4 20:00 EDT 2020. Contains 336202 sequences. (Running on oeis4.)