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 A214423 #9 Mar 28 2014 12:58:11
%S A214423 11,12,13,14,22,23,25,29,30,32,34,35,37,38,41,42,43,44,48,49,54,56,59,
%T A214423 60,61,62,64,66,68,70,71,72,74,77,81,83,86,89,97,101,112,113,117,118,
%U A214423 123,124,125,126,128,131,136,138,145,146,148,153,156,157,161
%N A214423 Numbers n palindromic in only one base b, 2 <= b <= 10.
%C A214423 The base for which n is a palindrome is given in A214427.
%H A214423 T. D. Noe, <a href="/A214423/b214423.txt">Table of n, a(n) for n = 1..10000</a>
%F A214423 A050812(n) = 1.
%e A214423 11 is palindromic only in base 10.
%t A214423 n = -1; t = {}; While[Length[t] < 100, n++; If[Count[Table[s = IntegerDigits[n, m]; s == Reverse[s], {m, 2, 10}], True] == 1, AppendTo[t, n]]]; t
%Y A214423 Cf. A050813, A214424, A214425, A214426 (palindromic in 0, 2-4 bases)
%K A214423 nonn,base
%O A214423 1,1
%A A214423 _T. D. Noe_, Jul 18 2012