%I A092868
%S A092868 1,8,424,48896,6672232,1022309408,176808084544,33055112886272,
%T A092868 6507475475389288,1336577286762538496,284198765977135568224,
%U A092868 62135041920796512325952,13901968841738902540019776
%N A092868 Coefficients c[r,n] in Schmidt's problem Sum[Binomial[n,k]^r Binomial[n+k,
               k]^r,{k,0,n}] == Sum[Binomial[n,k]Binomial[n+k,k]c[r,k],{k,0,n}] 
               for r=4.
%H A092868 Eric Weisstein's World of Mathematics, <a href="http://mathworld.wolfram.com/
               SchmidtsProblem.html">Schmidt's Problem</a>
%t A092868 c[4, n_] := Sum[Binomial[2j, j]^3Binomial[n, j]Binomial[k+j, k-j]Binomial[j, 
               n-k]Binomial[k, j]Binomial[2j, k-j], {k, 0, n}, {j, 0, n}]
%Y A092868 Cf. A000172, A000658.
%Y A092868 Fourth row of array A094424.
%Y A092868 Sequence in context: A015091 A008274 A038781 this_sequence A038782 A024110 
               A132099
%Y A092868 Adjacent sequences: A092865 A092866 A092867 this_sequence A092869 A092870 
               A092871
%K A092868 nonn
%O A092868 0,2
%A A092868 Eric Weisstein (eric(AT)weisstein.com), Mar 08, 2004