The OEIS is supported by the many generous donors to the OEIS Foundation.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.
%I #3 Dec 01 2013 17:20:00
%S 81,1235,26553,706994,16272765,330663907,5853344894,94722968640
%N Number of (n+1)X(6+1) 0..1 arrays x(i,j) with row sums sum{j^2*x(i,j), j=1..6+1} nondecreasing, and column sums sum{i^2*x(i,j), i=1..n+1} nondecreasing
%C Column 6 of A232877
%e Some solutions for n=3
%e ..0..0..0..0..0..0..1....1..0..1..0..0..0..0....0..1..1..0..0..1..0
%e ..0..1..1..0..0..0..1....0..1..1..0..0..0..1....1..0..0..0..0..0..1
%e ..0..0..0..1..0..1..1....0..0..0..1..1..1..1....0..0..0..1..1..1..1
%e ..0..0..0..0..1..1..1....0..1..1..1..1..1..1....0..1..1..1..1..1..1
%K nonn
%O 1,1
%A _R. H. Hardin_, Dec 01 2013