578027520domain: NAppears in sequencesTriangle of coefficients of certain exponential convolution polynomials.at n=29A048786List of pairs (a(n),b(n)): f(n) = A004001(n); a(n) = f(n) + a(n-1); b(n) = f(n)*b(n-1).at n=31A154280Partial products of A004001.at n=15A172452