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 A076129 #3 Jan 03 2019 03:40:25 %S A076129 4,2,7,2,1,9,3,33,29,4,14,1,5,16,35,81,11,86,25,11,24,214,34,17,16,2, %T A076129 40,16,233,16,166,91,250,14,8,11,30,2,56,289,3,98,217,501,47,163,197, %U A076129 200,127,6,362,142,10,137,486,31,229,81,354,514,333,185,175,222 %N A076129 Position of first n-digit prime encountered in decimal expansion of Pi (ignoring the initial 3). %H A076129 C. Rivera, <a href="http://www.primepuzzles.net/puzzles/puzz_040.htm">Prime puzzles</a> %Y A076129 Cf. A047658, A076106, A076094. %K A076129 easy,nonn,base %O A076129 1,1 %A A076129 Jean-Christophe Colin (jc-colin(AT)wanadoo.fr), Oct 31 2002