This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A094476 #9 Oct 15 2013 22:32:23
%S A094476 2,19,293,83537
%N A094476 Primes of form 2^j + 17^j.
%C A094476 The number j must be zero or a power of 2. Checked j being powers of two through 2^20. Thus a(5) > 10^2500000. Primes of this magnitude are rare (about 1 in 5.9 million), so chance of finding one is remote with today's computer algorithms and speeds. - _Robert Price_, Apr 29 2013
%e A094476 j=0: p=1+1=2;j=1: p=2+17=19;j=2: p=4+289=293;j=4: p=16+83521=83537; the j exponents are powers of 2.
%t A094476 Select[Table[2^n+17^n,{n,0,2000}],PrimeQ] (* _Harvey P. Dale_, Nov 27 2012 *)
%Y A094476 Cf. A082101, A094473-A094480.
%K A094476 nonn
%O A094476 1,1
%A A094476 _Labos Elemer_, Jun 01 2004