14238676712domain: NAppears in sequencesMaximum value of the n-th difference of a permutation of 0..n.at n=30A130783a(n) = Sum_{k=0..floor(n/2)} k*binomial(n,k).at n=31A185251a(n) = Sum_{k = 0..n} k*binomial(2*n+1, k).at n=15A303602