149920

Appears in sequences

• Multiply by 1, add 1, multiply by 2, add 2, etc., start with 1.at n=16A019464
• a(n+1) = n*(a(n) + 1) for n >= 1, a(1) = 1.at n=8A033540
• 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=53A368759