A232885 - OEIS

A232885

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

%I #3 Dec 02 2013 04:10:25

%S 527,12920,280325,5527323,100945688,1735612787,28449815784,

%T 448583973266,6850991384966,101901452399172,1482350434485915

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

%C Column 2 of A232886

%e Some solutions for n=2

%e ..1..0..3....1..0..2....1..0..3....2..1..2....0..3..0....0..2..2....0..0..0

%e ..1..2..2....1..0..2....1..3..2....1..1..3....2..0..3....1..2..2....0..1..0

%e ..3..3..2....0..3..3....3..3..3....1..3..3....0..2..3....3..2..2....0..0..3

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 02 2013