22199100domain: NAppears in sequencesa(n) is the number of sets of natural numbers [a,b,c,d,e] that can be produced with the numbers [0..n] such that the values of all the distinct parenthesized expressions of a-b-c-d-e are different.at n=30A054026G.f.: 8th root of weight enumerator of [64,42,8] Reed-Muller code RM(3,6).at n=8A110844