866695domain: NAppears in sequencesa(n) = n! * Laguerre(n,-5).at n=6A289211T(n, k) = n! * [x^n] exp(k * x/(1 - x))/(1 - x). Triangle read by rows, T(n, k) for 0 <= k <= n.at n=26A344048a(n) = n! * LaguerreL(n, -n+1).at n=6A344106