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 A137837 #15 Jan 08 2018 01:47:46 %S A137837 32257,32537,35227,35257,35327,72253,72353,73523,75223,75253,3223357, %T A137837 3223537,3225737,3235577,3235777,3237527,3252377,3253753,3253777, %U A137837 3257257,3273527,3275537,3322757,3325373,3325733,3327253,3333527,3335257,3353227,3372353,3375233,3523337,3525377,3527233,3527327 %N A137837 Emirps made up of a prime number of only prime digits including all of 2,3,5,7. %H A137837 Jud McCranie, <a href="/A137837/b137837.txt">Table of n, a(n) for n = 1..84</a> %Y A137837 Subsequence of A137833 and of A137836. %K A137837 base,nonn %O A137837 1,1 %A A137837 _Lekraj Beedassy_, Feb 12 2008 %E A137837 More terms from _Jud McCranie_, Jul 03 2013