Numbers of the form 2^((2^n)+1)*F_n, where F_n is a Fermat prime, A019434.
A330826
Numbers of the form 2^((2^n)+1)*F_n, where F_n is a Fermat prime, A019434.
Terms
- a(0) =12a(1) =40a(2) =544a(3) =131584a(4) =8590065664
External references
- oeis: A330826