5239857325

Appears in sequences

• Expansion of sin(x)/(1-x).at n=13A009551
• a(n) = (2*n+1)!*Sum_{k=0..n} (-1)^k/(2*k+1)!.at n=6A074790
• a(n) = n! * Sum_{k=0..floor(n/2)} (-1)^k / (n-2*k)!.at n=13A337749