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 A179056 #18 Mar 23 2023 03:18:59
%S A179056 1,2,8,6402
%N A179056 Numbers k such that prime(1)^1 + prime(2)^2 + ... + prime(k)^k is prime.
%C A179056 The number corresponding to k=6402 is a probable prime. There is no further term up to 9435.
%C A179056 There is no further term up to 12600. - _Michael S. Branicky_, Mar 22 2023
%e A179056 prime(1)^1 + prime(2)^2 + ... + prime(8)^8 = 17398892111 is prime, so 8 is in the sequence.
%t A179056 Select[Range[1, 100], PrimeQ[Sum[Prime[i]^i, {i, 1, #}]] &] (* _Julien Kluge_, Dec 03 2016 *)
%Y A179056 Cf. A087480.
%K A179056 hard,more,nonn
%O A179056 1,2
%A A179056 _Farideh Firoozbakht_, Jun 27 2010