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 A243020 #10 Aug 02 2018 08:53:45 %S A243020 1,2,3,4,5,6,7,8,9,10,11,12,27,744,1173268,2586625801171, %T A243020 14348276635209672362238685, %U A243020 1062286904072440687703470835520966381484062674280821 %N A243020 Denominators of Egyptian fraction expansion of Pi, without repetition. %C A243020 Slightly different version of A182257, disregarding the repetition of values. %H A243020 Arlu Genesis A. Padilla, <a href="/A243020/b243020.txt">Table of n, a(n) for n = 1..22</a> %e A243020 Pi = 1 + 1/2 + 1/3 + ... + 1/12 + 1/27 + 1/744 + ... %Y A243020 Cf. A182257, A001466, A224230 %K A243020 nonn %O A243020 1,2 %A A243020 _Arlu Genesis A. Padilla_, May 29 2014 %E A243020 a(16)-a(18) from _Arlu Genesis A. Padilla_, Jul 30 2018