472730domain: NAppears in sequencesNumerator of Integral_{x>=0} exp(-x)*(1+x/n)^n dx.at n=6A090878Structured disdyakis triacontahedral numbers (vertex structure 11).at n=29A100158Triangular array read by rows: T(n,k) is the number of partial functions on [n] with exactly k connected components, n>=0, 0<=k<=n.at n=29A349950