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A232760 Number of (n+1)X(1+1) 0..3 arrays x(i,j) with row sums sum{j^4*x(i,j), j=1..1+1} nondecreasing, and column sums sum{i^4*x(i,j), i=1..n+1} nondecreasing 1

%I #5 Nov 29 2013 17:13:57

%S 86,561,2834,11863,42958,138943,407544,1105315,2802289,6705803,

%T 15253456,33149048,69203489,139365681,271624913,513974476,946613483,

%U 1700901689,2987599393,5138621445,8668817851,14363420954,23402083437,37534342033

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

%C Column 1 of A232763

%H R. H. Hardin, <a href="/A232760/b232760.txt">Table of n, a(n) for n = 1..26</a>

%e Some solutions for n=4

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Nov 29 2013

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Last modified July 8 09:01 EDT 2024. Contains 374153 sequences. (Running on oeis4.)