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 A145594 #12 Dec 12 2023 08:22:31
%S A145594 8,3,4,2,6,7,5,0,1,8,3,4,2,6,7,5,0,1,8,3,4,2,6,7,5,0,1,8,3,4,2,6,7,5,
%T A145594 0,1,8,3,4,2,6,7,5,0,1
%N A145594 A145593(n) mod 9.
%C A145594 Decimal expansion of the constant 92696389/111111111. - _R. J. Mathar_, Oct 24 2008
%F A145594 Period 9: a(n+9)=a(n).
%t A145594 PadRight[{},90,{8,3,4,2,6,7,5,0,1}] (* _Harvey P. Dale_, Jun 08 2014 *)
%K A145594 nonn,less
%O A145594 0,1
%A A145594 _Paul Curtz_, Oct 14 2008
%E A145594 Edited by _R. J. Mathar_, Oct 24 2008