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 A020843 #11 Jul 08 2025 07:55:14 %S A020843 1,0,7,8,3,2,7,7,3,2,0,3,4,3,8,4,1,5,7,2,6,9,3,5,0,7,0,6,2,7,7,9,2,7, %T A020843 2,8,2,1,2,3,6,5,9,1,7,5,8,2,2,8,2,5,3,7,3,6,4,8,1,1,9,3,7,1,8,9,8,6, %U A020843 3,2,1,9,0,2,8,6,4,9,3,3,7,4,7,9,4,4,2,3,9,3,6,9,0,2,1,4,8,1,8 %N A020843 Decimal expansion of 1/sqrt(86). %H A020843 Ivan Panchenko, <a href="/A020843/b020843.txt">Table of n, a(n) for n = 0..1000</a> %o A020843 (PARI) 86^-.5 \\ _Charles R Greathouse IV_, Dec 04 2016 %K A020843 nonn,cons %O A020843 0,3 %A A020843 _N. J. A. Sloane_