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 A202264 #11 Feb 25 2013 21:31:12 %S A202264 1,2,3,5,7,11,13,17,31,37,71,73,113,131,311,313,373 %N A202264 Noncomposite numbers in which all substrings and reversal substrings are noncomposites. %C A202264 Sequence is finite with 17 terms. %C A202264 Supersequence of A202263, A085823. %C A202264 Subsequence of A068669, A012883, A024770, A012883. %e A202264 All substrings and reversal substrings of 311 are noncomposites: 1, 3, 11, 13, 31, 113, 311. %Y A202264 Cf. A202263 (primes in which all substrings and reversal substrings are primes), A202265 (nonprimes in which all substrings and reversal substrings are nonprimes), A202266 (composite numbers in which all substrings and reversal substrings are composites). %K A202264 nonn,base,fini,full %O A202264 1,2 %A A202264 _Jaroslav Krizek_, Dec 25 2011