77373domain: NAppears in sequencesLet r, s, t be three permutations of the set { 1, 2, 3, ..., n }; a(n) = minimal value of Sum_{i=1..n} r(i)*s(i)*t(i).at n=32A070735Number of nondecreasing integer sequences of length 13 with sum zero and sum of absolute values 2n.at n=17A158147