Fermat primes: primes of form 2^(2^k) + 1, for some k >= 0.
3, 5, 17, 257, 6553
5 seqfan posts
Sat Mar 6 20:57:07 CET 2010 [seqfan] Re: Sums of a Mersenne prime and a Fermat prime; Means of a Mersenne prime and a Fermat prime; prime means of a Mersenne prime and a Fermat prime
Sat Mar 6 10:34:06 CET 2010 [seqfan] Re: Sums of a Mersenne prime and a Fermat prime; Means of a Mersenne prime and a Fermat prime; prime means of a Mersenne prime and a Fermat prime
Sat Mar 6 07:09:18 CET 2010 [seqfan] Sums of a Mersenne prime and a Fermat prime; Means of a Mersenne prime and a Fermat prime; prime means of a Mersenne prime and a Fermat prime
Sat Feb 14 06:36:21 CET 2009 [seqfan] Re: Questions relating to "Sums of three Fermat numbers" -- sums of 5? Primes in A155877? Artificial or not?
Sat Feb 14 04:29:46 CET 2009 [seqfan] Questions relating to "Sums of three Fermat numbers" -- sums of 5? Primes in A155877? Artificial or not?
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