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 A084340 #8 Jan 14 2016 17:53:42
%S A084340 5,2,7,4,4,1,6,3,0,0,5,1,3,5,5,7,1,3,5,5,7,1,3,2,2,4,6,0,2,2,4,6,0,2,
%T A084340 2,4,3,5,7,7,1,3,5,7,7,1,3,5,4,4,6,0,2,4,4,6,0,2,4,4,6,5,7,1,1,3,5,7,
%U A084340 1,1,3,5,7,6,6,0,2,4,6,6,0,2,4,6,6,0,7,1,3,3,5,7,1,3,3,5,7,1,0,0,2,4,6,0,0
%N A084340 8*n digit-reversed mod 8.
%t A084340 Table[Mod[IntegerReverse[8*n],8],{n,2,110}] (* The program uses the IntegerReverse function from Mathematica version 10 *) (* _Harvey P. Dale_, Jan 14 2016 *)
%Y A084340 Cf. A084052, A084053, A084054, A084055, A084339, A084341.
%K A084340 base,easy,nonn
%O A084340 2,1
%A A084340 _Amarnath Murthy_ and Meenakshi Srikanth (menakan_s(AT)yahoo.com), May 26 2003
%E A084340 More terms from _Ray Chandler_, May 27 2003