83462400

Appears in sequences

• Expansion of e.g.f. (2+x-x^2)/(1-x)^2.at n=10A052649
• a(n) = (2*n+1)*(n-1)!.at n=10A129326
• a(n) = n! * Sum_{k=0..floor(n/2)} (n - 2*k)^k/2^k.at n=10A356632
• Expansion of e.g.f. 1 / ( 1 - Sum_{k>=0} x^(5*k+1) / (5*k+1) ).at n=11A365977