Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).
%I #12 May 19 2024 08:52:58
%S 7,11,13,19,31,67,131,307,631,733,1723,3541,4099,4931,5113,8011,10303,
%T 14653,17293,19687,24419,28057,30103,32771,59053,65539,68963,86143,
%U 147073,148931,262147,357983,459007,492103,552793,571871,579883,598303,684757,704761
%N Primes that can be written as 1+p+p^k, p prime and k>1.
%C A084440(a(n))>0; subset of A084441.
%H Jason Yuen, <a href="/A084444/b084444.txt">Table of n, a(n) for n = 1..10000</a>
%e 729 = 1+3+3^6.
%Y Cf. A084440, A084441.
%K nonn
%O 1,1
%A _Reinhard Zumkeller_, May 26 2003
%E More terms from _David Wasserman_, Dec 29 2004