
COMMENTS

Next term, if it exists, has more than 618 digits.  Emeric Deutsch, Mar 27 2005
Next term, if it exists, has more than 10,000 digits.
The corresponding primes p are: 2, 3, 13, 19, ....  Gerasimov Sergey, Jul 26 2013
The corresponding 2^p  1 are 3, 7, 8191, 524287 which are Mersenne primes (A000668). Is this the case for all members of the sequence? None of the other Mersenne primes < 2^1320491 correspond to members of the sequence.  Robert Israel, Jul 18 2016
Next term is 2^481801481801. 2^4818011 is not a Mersenne prime.  Joerg Arndt, Jul 19 2016
