a(n) = Sum_{k=0..n} (k/n)^2 * binomial(n,k)^5.
A374614
a(n) = Sum_{k=0..n} (k/n)^2 * binomial(n,k)^5.
Terms
- a(0) =1a(1) =9a(2) =136a(3) =2585a(4) =54126a(5) =1227492a(6) =29226688a(7) =723533337a(8) =18438032890a(9) =480994824134
External references
- oeis: A374614