%I #3 Oct 03 2013 09:33:13
%S 1,92378,1551580888,8291930371088,18748054569029968,
%T 21427584214357481888
%N Number of 9 X 10 matrices with elements in 0..n with each row and each column in nondecreasing order. 9,10,n can be permuted, see formula.
%F (empirical) set p,q,r to n,10,9 (in any order) in s=p+q+r1; a(n) = product {i in 0..r1} (binomial(s,p+i)*i!/(si)^(ri1))
%K nonn
%O 0,2
%A _R. H. Hardin_, Jul 05 2008
