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A232792

Number of (n+1)X(3+1) 0..1 arrays x(i,j) with row sums sum{j^4*x(i,j), j=1..3+1} nondecreasing, and column sums sum{i^4*x(i,j), i=1..n+1} nondecreasing.

25, 130, 650, 2942, 11819, 42305, 127788, 340647, 812254, 1845329, 4090533, 8883930, 18856951, 39064639, 78110927, 150282496, 279339615, 503544700, 885775170, 1527791237, 2592456480, 4335154285, 7134155240, 11544683457

(list; graph; refs; listen; history; text; internal format)

OFFSET

1,1

COMMENTS

Column 3 of A232797

LINKS

R. H. Hardin, Table of n, a(n) for n = 1..29

EXAMPLE

Some solutions for n=5

..0..1..0..0....1..0..0..1....0..0..0..0....1..0..0..0....1..1..0..1

..1..0..1..0....1..0..0..1....1..0..0..0....1..1..0..1....1..1..0..1

..0..1..1..0....1..0..0..1....0..1..0..0....1..1..0..1....0..0..1..1