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 A087390 #5 Dec 05 2013 19:56:21 %S A087390 7,71,173,3719,91733,3371947,749173303,3033719477,774917330303, %T A087390 30303371947759,957749173303031,13030337194775911,1195774917330303119, %U A087390 9113030337194775911093,390119577491733030311941 %N A087390 a(1) = 7; a(n+1) is the least prime formed by adding one or more digits to the digit reversal of a(n). %e A087390 a(2) = 71, a(3) is the smallest prime beginning with 17 and is 173. %Y A087390 Cf. A087388, A087389, A087391. %K A087390 base,nonn %O A087390 1,1 %A A087390 _Amarnath Murthy_, Sep 09 2003 %E A087390 More terms from _David Wasserman_, May 25 2005