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 A021428 #11 Aug 14 2025 15:45:08 %S A021428 0,0,2,3,5,8,4,9,0,5,6,6,0,3,7,7,3,5,8,4,9,0,5,6,6,0,3,7,7,3,5,8,4,9, %T A021428 0,5,6,6,0,3,7,7,3,5,8,4,9,0,5,6,6,0,3,7,7,3,5,8,4,9,0,5,6,6,0,3,7,7, %U A021428 3,5,8,4,9,0,5,6,6,0,3,7,7,3,5,8,4,9,0,5,6,6,0,3,7,7,3,5,8,4,9 %N A021428 Decimal expansion of 1/424. %H A021428 <a href="/index/Rec#order_13">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,0,0,0,0,0,0,0,0,1). %e A021428 0.0023584905660377358490566037735849056603773584905660... %t A021428 First[RealDigits[1/424, 10, 100, -1]] (* _Paolo Xausa_, Aug 14 2025 *) %K A021428 nonn,cons,easy %O A021428 0,3 %A A021428 _N. J. A. Sloane_