a(0) = 0; a(n) = n^3 - (1/n) * Sum_{k=1..n-1} binomial(n,k)^2 * (n-k)^3 * k * a(k).
A337825
a(0) = 0; a(n) = n^3 - (1/n) * Sum_{k=1..n-1} binomial(n,k)^2 * (n-k)^3 * k * a(k).
Terms
- a(0) =0a(1) =1a(2) =6a(3) =-33a(4) =-512a(5) =19405a(6) =181116a(7) =-45817541a(8) =771776384a(9) =280415588121
External references
- oeis: A337825