a(n) = binomial(n+10, 10)*7^n.

A197193

a(n) = binomial(n+10, 10)*7^n.

Terms

    a(0) =1a(1) =77a(2) =3234a(3) =98098a(4) =2403401a(5) =50471421a(6) =942133192a(7) =16016264264a(8) =252256162158

External references