%I #4 Mar 11 2015 19:16:19
%S 0,42,3836,174652,5579536,144467430,3265329848,67312339598,
%T 1301421849824,24048952078889,430422420403100,7533527344234870,
%U 129872860822059096,2217253446393756056,37645087319936852196,637701933335948288525,10805989785555925331616
%N Number of collections of nonempty multisets with a total of n+9 objects of exactly n colors.
%H Alois P. Heinz, <a href="/A255959/b255959.txt">Table of n, a(n) for n = 0..250</a>
%F a(n) = A255903(n+9,n).
%Y A diagonal of A255903.
%K nonn
%O 0,2
%A _Alois P. Heinz_, Mar 11 2015