a(n) = 3^p - 2^p - 1, where p is prime(n).
A242083
a(n) = 3^p - 2^p - 1, where p is prime(n).
Terms
- a(0) =4a(1) =18a(2) =210a(3) =2058a(4) =175098a(5) =1586130a(6) =129009090a(7) =1161737178a(8) =94134790218
External references
- oeis: A242083
A242083
a(n) = 3^p - 2^p - 1, where p is prime(n).