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 A104913 #2 Mar 30 2012 17:26:12 %S A104913 29,47,61,89,97,229,379,389,419,461,463,467,643,701,733,769,997,1103, %T A104913 1319,1327,1361,1439,1451,1481,1489,1493,1543,1549,1579,1741,1823, %U A104913 1951,2039,2063,2081,2089,2237,2273,2287,2549,2621,2683,2693,2963,2999 %N A104913 Primes p such that the string 9876543210p is prime, or primes in A104912. %Y A104913 Cf. A104800, A104912. %K A104913 nonn,base %O A104913 1,1 %A A104913 _Zak Seidov_, Mar 29 2005