629280

Appears in sequences

• Expansion of g.f. (x^3 - 6*x^2 + 5*x - 1)/((2*x - 1)*(2*x^2 - 4*x + 1)).at n=13A024175
• a(n) = n! * (!(n+1)) = n! * Sum_{k=0..n} k!.at n=6A143217