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 A083838 #7 Aug 25 2014 12:11:44 %S A083838 2,3,4,5,6,7,8,9,55,11,606,0,66,99,121,33,0,55,77,101,22,111,0,121, %T A083838 101,131,55,141,88,121,0,33,232,171,141,181,0,77,313,121,0,0,44,353, %U A083838 181,323,424,0,99,101,0,313,0,55,111,393,343,9339,414,121,0,373,505,0,66,595 %N A083838 Smallest palindrome of the form nk+1 where k is also a palindrome:, or 0 if no such number exists; palindromes arising in A083837. %C A083838 0 in sequence indicates no palindrome < 10^15 - _Ray Chandler_, Jul 13 2003 %e A083838 a(9)=6*9+1=55, a(11)=55*11+1=606. %Y A083838 Cf. A083829, A083830, A083832, A083834, A083835, A083837. %K A083838 base,nonn %O A083838 1,1 %A A083838 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 09 2003 %E A083838 Corrected and extended by _Ray Chandler_, May 22 2003