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 A262634 #7 Oct 23 2015 13:41:38
%S A262634 0,17,839,15647,19875809,271854991487,1037745510031339,
%T A262634 1723740375514348277,79540916124198230488513,
%U A262634 5823206408678014785594704353,331079896899961216174255077712193,5255024346804703767393892624827437183,679574531660517571339207845002833364989
%N A262634 Base-10 representation of 0 and the primes at A262633.
%H A262634 Clark Kimberling, <a href="/A262634/b262634.txt">Table of n, a(n) for n = 1..300</a>
%e A262634 n A262633(n) base-10 representation
%e A262634 1 0 0
%e A262634 2 101 17
%e A262634 3 31013 839
%t A262634 s = {0}; base = 4; z = 20; Do[NestWhile[# + 1 &, 1, ! PrimeQ[tmp = FromDigits[Join[#, IntegerDigits[Last[s]], Reverse[#]] &[IntegerDigits[#, base]], base]] &];
%t A262634 AppendTo[s, FromDigits[IntegerDigits[tmp, base]]], {z}]; s (* A262633 *)
%t A262634 Map[FromDigits[ToString[#], base] &, s] (* A262634 *)
%t A262634 (* _Peter J. C. Moses_, Sep 01 2015 *)
%Y A262634 Cf. A262633. Subsequence of A029972.
%K A262634 nonn,base
%O A262634 1,2
%A A262634 _Clark Kimberling_, Oct 02 2015