1844042domain: NAppears in sequencesE.g.f.: Sum_{n>=0} (exp((n+1)*x) - 1)^n.at n=5A248798Array read by downward antidiagonals: A(n,k) = Sum_{i=0..n-1} Sum_{j=0..k+1} binomial(n-1,i)*binomial(k+1,j)*A(i,j) with A(0,k) = 1, n >= 0, k >= 0.at n=50A383410