259512

Appears in sequences

• Add 1, multiply by 1, add 2, multiply by 2, etc., start with 1.at n=16A019463
• a(0)=1, a(n) = n*(a(n-1) + n).at n=8A053817
• a(n) = 3*(3^(n-1) - 2^n + 1)/2 - binomial(n,2), n >= 3.at n=9A363591
• 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=63A368759