a(n) = (2^p-1)*(2^(p-1))*((2^p-1)^2-2), where p is the n-th prime.

A331858

a(n) = (2^p-1)*(2^(p-1))*((2^p-1)^2-2), where p is the n-th prime.

Terms

    a(0) =42a(1) =1316a(2) =475664a(3) =131080256

External references