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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 1

%I

%S 25,130,650,2942,11819,42305,127788,340647,812254,1845329,4090533,

%T 8883930,18856951,39064639,78110927,150282496,279339615,503544700,

%U 885775170,1527791237,2592456480,4335154285,7134155240,11544683457

%N 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

%C Column 3 of A232797

%H R. H. Hardin, <a href="/A232792/b232792.txt">Table of n, a(n) for n = 1..29</a>

%e Some solutions for n=5

%e ..0..1..0..0....1..0..0..1....0..0..0..0....1..0..0..0....1..1..0..1

%e ..1..0..1..0....1..0..0..1....1..0..0..0....1..1..0..1....1..1..0..1

%e ..0..1..1..0....1..0..0..1....0..1..0..0....1..1..0..1....0..0..1..1

%e ..1..1..0..1....1..0..1..1....0..0..1..1....1..1..0..1....1..1..1..1

%e ..1..1..0..1....0..1..1..1....1..0..1..1....0..0..1..1....1..1..1..1

%e ..0..0..1..1....1..1..1..1....0..1..1..1....0..1..1..1....1..1..1..1

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 30 2013

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Last modified September 24 13:28 EDT 2022. Contains 356932 sequences. (Running on oeis4.)