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 A134212 #10 Mar 20 2020 07:54:50
%S A134212 148,220,243,297,483,499,607,660,710,712,963,1080,1199,1299,1350,1425,
%T A134212 1843,1864,1924,2013,2287,2295,2307,2341,2498,2632,2938,2976,3258,
%U A134212 3322,3328,3346,3426,3455,3499,3690,3713,3823,3892,4056,4160,4220,4252,4372,4414,4450
%N A134212 Positions of 12 after decimal point in decimal expansion of Pi.
%H A134212 Amiram Eldar, <a href="/A134212/b134212.txt">Table of n, a(n) for n = 1..10000</a>
%t A134212 First /@ SequencePosition[RealDigits[Pi - 3, 10, 5000][[1]], {1, 2}] (* _Amiram Eldar_, Mar 20 2020 *)
%Y A134212 Cf. A037008, A037000, A037001, A037002, A037003, A037004, A037005, A036974, A037006, A037007, A014777, A050208, A134213, A134214, A134215, A134216, A134217, A134218, A134218, A134219.
%K A134212 nonn,base
%O A134212 1,1
%A A134212 _Artur Jasinski_, Oct 14 2007
%E A134212 More terms from _Amiram Eldar_, Mar 20 2020