458026domain: NAppears in sequencesa(n) = 5*n*a(n-1) + 1 with a(0)=1.at n=5A056546a(n) = Sum_{k=0..n} binomial(n,k) * n^k * k!.at n=5A277452Square array A(n,k), n >= 0, k >= 0, read by antidiagonals, where column k is the expansion of the e.g.f. exp(x)/(1 - k*x).at n=60A320031