a(n) = 5^p - 3^p - 2^p, where p = prime(n).

A135173

a(n) = 5^p - 3^p - 2^p, where p = prime(n).

Terms

    a(0) =12a(1) =90a(2) =2850a(3) =75810a(4) =48648930a(5) =1219100610a(6) =762810181890

External references