-70080domain: ZAppears in sequencesQ(1,n), where Q(m,k) is defined in A127080 and A127137.at n=11A127138Triangle read by rows, T(n, k) = [x^k](Sum_{k=0..n}(-1)^(n-k)*Stirling2(n, k)*k!* x^k)^2, for 0 <= k <= 2n.at n=41A290696