29211840domain: NAppears in sequencesDirichlet inverse of Ramanujan's L-series (A000594).at n=29A181104Triangle read by rows, T(n,k) = RF(n-k+1,n-k)*S2(n,k) where RF denotes the rising factorial and S2 the Stirling set numbers, for n>=0 and 0<=k<=n.at n=39A268435