11163952389domain: NAppears in sequencesNumber of n-element subsets that can be chosen from {1,2,...,2*n^3} having element sum n^4.at n=6A185062Square array A(n,k), n>=0, k>=0, read by antidiagonals: A(n,k) is the number of n-element subsets that can be chosen from {1,2,...,2*n^k} having element sum n^(k+1).at n=51A185282