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 A192139 #9 May 11 2015 20:55:42 %S A192139 1,2,3,4,5,7,8,9,11,16,25,27,32,49,64,81,101,121,125,128,131,151,181, %T A192139 191,243,256,313,343,353,373,383,512,625,727,729,757,787,797,919,929, %U A192139 1024,1331,2048,2187,2401,3125,4096,6561,8192,10201,10301,10501,10601,11311,11411,12421,12721 %N A192139 Powers p^m, m >= 0, of palindromic primes p (A002385). %C A192139 Superset of A002385 and A084092. Subset of A192137. %H A192139 M. F. Hasler, <a href="/A192139/b192139.txt">Table of n, a(n) for n = 1..858</a> (all terms up to 10^7). %o A192139 (PARI) A192139=[1]; forprime(p=1,M=1e7, p==A004086(p) && A192139=setunion(A192139,vector(log(M)\log(p),k,p^k))) \\ _M. F. Hasler_, May 11 2015 %Y A192139 Cf. A002113, A002385, A084317, A084092, A192137, A192138, A192140, A192141. %K A192139 nonn,base %O A192139 1,2 %A A192139 _Jaroslav Krizek_, Jun 24 2011 %E A192139 Missing term 625 inserted and more terms added by _M. F. Hasler_, May 11 2015