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 A262646 #6 Oct 26 2015 22:24:37
%S A262646 0,37,242399,99425647,2773336219,95004181411,6926597956637167,
%T A262646 25520724664154228141,238868280677120302172737,
%U A262646 18101838945984695191070222173,578712262382613259078341544982179,20796546496637158906389193655535571
%N A262646 Base-10 representation of 0 and the primes at A262645.
%H A262646 Clark Kimberling, <a href="/A262646/b262646.txt">Table of n, a(n) for n = 1..300</a>
%e A262646 n A262645(n) base-10 representation
%e A262646 1 0 0
%e A262646 2 101 37
%e A262646 3 5110115 242399
%t A262646 s = {0}; base = 6; z = 20; Do[NestWhile[# + 1 &, 1, ! PrimeQ[tmp = FromDigits[Join[#, IntegerDigits[Last[s]], Reverse[#]] &[IntegerDigits[#, base]], base]] &];
%t A262646 AppendTo[s, FromDigits[IntegerDigits[tmp, base]]], {z}]; s (* A262645 *)
%t A262646 Map[FromDigits[ToString[#], base] &, s] (* A262646 *)
%t A262646 (* _Peter J. C. Moses_, Sep 01 2015 *)
%Y A262646 Cf. A262645.
%K A262646 nonn,base
%O A262646 1,2
%A A262646 _Clark Kimberling_, Oct 24 2015