9833391domain: NAppears in sequencesa(n) = Sum_{k=0..n} (-1)^(n-k) * C(n,k) * Stirling1(n+1, k+1).at n=8A247329Triangle read by rows, T(n,k) = Sum_{j=0..n} (-1)^(n-j)*C(-j,-n)*S1(k,j), S1 the Stirling cycle numbers A132393, for n>=0 and 0<=k<=n.at n=54A271699