197018321domain: NAppears in sequences151*n^7/315+2*n^5/9+7*n^3/45+n/7.at n=17A229735Number of solutions to the equation x_1 + ... + x_n =0 satisfying -n<=x_i<=n (1<=i<=n).at n=8A286928Number of arrays of 8 integers in -n..n with sum zero.at n=8A322535Number of arrays of n integers in -8..8 with sum zero.at n=8A322538