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 A248627 #5 Oct 16 2014 04:25:26 %S A248627 0,2,94,7,21,120,143,23,26,59,66,72,65,78,162,195,147,149,219,79,180, %T A248627 172,177,196,212,202,193,201,260,373,303,386,644,294,446,378,289,419, %U A248627 361,505,514,877,519,835,940,494,593,753,883,957,500,484,560,406,466 %N A248627 Index at which the first n appears in A248625 = least nonnegative sequence with no AP (a(n), a(n+d), a(n+2d)). %F A248627 a(n) = A241752(n)-1. %Y A248627 Cf. A248625, A229037, A241752. %K A248627 nonn %O A248627 0,2 %A A248627 _M. F. Hasler_, Oct 10 2014