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 A000852 #13 Apr 01 2017 00:29:28 %S A000852 1,8,11,18,80,81,82,83,84,85,86,87,88,89,100,101,102,103,104,105,106, %T A000852 107,108,109,110,111,112,113,114,115,116,117,118,119,120,121,122,123, %U A000852 124,125,126,127,128,129,130,131,132 %N A000852 Numbers beginning with a vowel in English. %H A000852 John Cerkan, <a href="/A000852/b000852.txt">Table of n, a(n) for n = 1..10000</a> %Y A000852 Cf. A000865, A000873. %K A000852 word,nonn,easy %O A000852 1,2 %A A000852 _N. J. A. Sloane_