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 A037299 #6 May 19 2013 12:18:40 %S A037299 2,11,2,3,3,3,3,11,139,653,3863,5107,3,11,7,73,2,2,3,13,367,11,29,3, %T A037299 163,6373,2,3,3,3,31,8308475676071413,3,7,2,11,3,3,13,19,7,73,3,251, %U A037299 13,367,2,2,7,5,47,2,41,271,3,11,3,13,97,11,29,7,11,29,3,73,3,13,3,31,41 %N A037299 Prime substrings of prime numbers in A037272. %C A037299 There should be an analogous sequence for A037273 (_N. J. A. Sloane_). %K A037299 nonn %O A037299 0,1 %A A037299 _Jeff Burch_