193856

Appears in sequences

• Expansion of e.g.f.: (1-x)^(-2x).at n=8A053489
• Square array T(n,k), n >= 0, k >= 0, read by antidiagonals downwards, where T(n,k) = (-1)^n * n! * Sum_{j=0..floor(n/2)} k^j * Stirling1(n-j,j)/(n-j)!.at n=63A362834