853315

Appears in sequences

• Triangle read by rows: T(n,k) = Sum_{j=k..n} binomial(n,j)*Stirling_2(j,k)*Bell(n-j), where Bell(n) = A000110(n), for n >= 1, 0 <= k <= n-1.at n=49A244489
• E.g.f.: exp(exp(x) - 1) * (exp(x) - 1)^4 / 4!.at n=6A346843