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 A134256 #9 Mar 21 2020 07:21:30 %S A134256 9,16,23,27,38,61,74,88,96,106,117,127,149,154,177,190,216,235,236, %T A134256 239,292,303,312,322,336,337,339,344,345,361,377,406,413,417,444,446, %U A134256 471,487,488,492,496,508,511,522,526,532,549,555,559,568,570,576,578,589 %N A134256 Positions of 6 after decimal point in decimal expansion of 1/Pi. %H A134256 Amiram Eldar, <a href="/A134256/b134256.txt">Table of n, a(n) for n = 1..10000</a> %t A134256 Flatten @ Position[RealDigits[1/Pi, 10, 500][[1]], 6] (* _Amiram Eldar_, Mar 21 2020 *) %Y A134256 Cf. A037000, A014777, A134251, A134252, A134253, A134254, A134255, A134257, A134258, A134259, A134260. %K A134256 nonn,base %O A134256 1,1 %A A134256 _Artur Jasinski_, Oct 16 2007