334620

Appears in sequences

• a(n) = (n/(n+1)) * lcm(1,2,...,n+1).at n=12A025558
• Expansion of exp( Sum_{n>=1} -sigma_2(3*n)*x^n/n ) in powers of x.at n=23A283243
• T(n, k) = [x^k] M(n)*Sum_{k=0..n} E2(n, k)*binomial(-x + n - k, 2*n), where E2 are the second-order Eulerian numbers A340556 and M(n) are the Minkowski numbers A053657. Triangle read by rows, T(n, k) for n >= 0 and 0 <= k <= 2*n+1.at n=29A341111