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 A323098 #14 Nov 11 2019 22:16:12 %S A323098 7,6,2,3,8,7,0,5,5,5,0,6,7,7,3,8,7,4,4,9,8,4,0,2,6,8,2,1,5,8,8,4,9,2, %T A323098 2,6,0,9,6,3,2,1,4,2,1,2,8,0,9,2,8,2,7,9,8,6,9,1,4,9,8,4,9,6,3,4,6,9, %U A323098 4,8,3,7,5,1,0,8,7,0,7,2,1,3,2,8,9,4,8 %N A323098 Decimal expansion of edge length of a regular pentagon with area 1. %F A323098 Equals sqrt(1/A102771) = 2/(25 + 10*sqrt(5))^(1/4). %e A323098 0.7623870555067738744984026821... %t A323098 RealDigits[(2)/(25 + 10*Sqrt[5])^(1/4), 10, 100][[1]] (* _Metin Sariyar_, Oct 26 2019 *) %o A323098 (PARI) default(realprecision, 110); 2/(25 + 10*sqrt(5))^(1/4) %Y A323098 Cf. A102771, A154605 (the edge length of an equilateral triangle). %K A323098 cons,nonn %O A323098 0,1 %A A323098 _Jinyuan Wang_, Oct 26 2019