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 A134255 #9 Mar 21 2020 07:21:23 %S A134255 19,25,30,57,70,72,77,90,91,94,105,108,110,112,114,123,134,138,140, %T A134255 141,158,173,174,179,180,188,192,201,210,230,246,250,270,291,299,324, %U A134255 343,360,375,382,429,431,440,450,454,465,484,490,512,517,518,529,530,531 %N A134255 Positions of 5 after decimal point in decimal expansion of 1/Pi. %H A134255 Amiram Eldar, <a href="/A134255/b134255.txt">Table of n, a(n) for n = 1..10000</a> %t A134255 Flatten @ Position[RealDigits[1/Pi, 10, 500][[1]], 5] (* _Amiram Eldar_, Mar 21 2020 *) %Y A134255 Cf. A037000, A014777, A134251, A134252, A134253, A134254, A134256, A134257, A134258, A134259, A134260. %K A134255 nonn,base %O A134255 1,1 %A A134255 _Artur Jasinski_, Oct 16 2007