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 A233061 Number of (n+1)X(4+1) 0..1 arrays x(i,j) with row sums sum{x(i,j), j=1..4+1} nondecreasing, and column sums sum{i*x(i,j), i=1..n+1} nondecreasing 0

%I #3 Dec 03 2013 19:32:28

%S 34,319,2875,30692,334580,3654675,39886178,433495407,4690717033,

%T 50556528980

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

%C Column 4 of A233062

%e Some solutions for n=5

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

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

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

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

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

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

%K nonn

%O 1,1

%A _R. H. Hardin_, Dec 03 2013

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Last modified June 2 20:13 EDT 2023. Contains 363100 sequences. (Running on oeis4.)