a(n) = 2^p + 1 where p is the n-th prime.
A098640
a(n) = 2^p + 1 where p is the n-th prime.
Terms
- a(0) =5a(1) =9a(2) =33a(3) =129a(4) =2049a(5) =8193a(6) =131073a(7) =524289a(8) =8388609a(9) =536870913a(10) =2147483649a(11) =137438953473
External references
- oeis: A098640