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 A135253 #16 Jun 04 2020 02:10:54
%S A135253 29,15013,18619578267422150405596466863475139731
%N A135253 Primes in A135485.
%C A135253 Prime a(5), if it exists, appears later than A135485(1500). - _G. C. Greubel_, May 30 2020
%H A135253 Jinyuan Wang, <a href="/A135253/b135253.txt">Table of n, a(n) for n = 1..4</a>
%t A135253 A135485:= Table[Sum[Prime[i]^(i-1), {i, n}], {n, 100}];
%t A135253 Select[A135485, PrimeQ] (* _G. C. Greubel_, May 30 2020 *)
%o A135253 (PARI) lista(nn) = {for (n=1, nn, v = sum(i=1, n, prime(i)^(i-1)); if (isprime(v), print1(v, ", ");););} \\ _Michel Marcus_, Jun 02 2013
%Y A135253 Cf. A135485.
%K A135253 nonn
%O A135253 1,1
%A A135253 _Ctibor O. Zizka_, Feb 15 2008
%E A135253 Corrected and extended by _Michel Marcus_, Jun 02 2013