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 A021095 #12 Jul 08 2025 08:01:18 %S A021095 0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9, %T A021095 8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1, %U A021095 0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0,9,8,9,0,1,0 %N A021095 Decimal expansion of 1/91. %C A021095 Generalization: %C A021095 1/1 = sum (9^i/10^(i+1)), i >= 0, %C A021095 1/91 = sum (9^i/100^(i+1)), i >= 0, (this sequence) %C A021095 1/991 = sum (9^i/1000^(i+1)), i >= 0, %C A021095 1/9991 = sum (9^i/1000^(i+1)), i >= 0, ... - _Daniel Forgues_, Oct 28 2011 %H A021095 <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (1, 0, -1, 1). %K A021095 nonn,cons %O A021095 0,4 %A A021095 _N. J. A. Sloane_