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 A134259 #11 Mar 21 2020 07:12:38 %S A134259 6,14,40,42,44,49,53,56,68,71,100,115,128,132,142,152,153,162,163,182, %T A134259 185,203,209,248,249,259,274,280,305,306,308,317,323,328,330,335,341, %U A134259 348,355,358,363,365,368,381,388,397,398,407,411,412,419,422,423,424 %N A134259 Positions of 9 after decimal point in decimal expansion of 1/Pi. %H A134259 Amiram Eldar, <a href="/A134259/b134259.txt">Table of n, a(n) for n = 1..10000</a> %t A134259 Position[RealDigits[1/Pi,10,500][[1]],9]//Flatten (* _Harvey P. Dale_, Oct 31 2018 *) %Y A134259 Cf. A037000, A014777, A134251, A134252, A134253, A134254, A134255, A134256, A134257, A134258, A134260. %K A134259 nonn,base %O A134259 1,1 %A A134259 _Artur Jasinski_, Oct 16 2007