a(n) = Sum_{k=1..n} C(n,k)^4 where C(n,k) is binomial(n,k).

A096192

a(n) = Sum_{k=1..n} C(n,k)^4 where C(n,k) is binomial(n,k).

Terms

    a(0) =1a(1) =17a(2) =163a(3) =1809a(4) =21251a(5) =263843a(6) =3395015a(7) =44916497a(8) =607041379a(9) =8345319267a(10) =116335834055

External references