1349290

Appears in sequences

• a(n) = n*a(n-1) + 1, a(0) = 2.at n=9A038159
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = n! * (1 + Sum_{j=0..n} j^k/j!).at n=54A368759