**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?

Index of A-numbers in seqfan: by ascending order
by month
by frequency
by keyword

Links to OEIS content are included according to
The OEIS End-User License Agreement
.