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 A384059 #12 May 22 2025 19:08:23 %S A384059 9,8,6,7,1,5,1,5,5,3,2,5,9,8,3,1,0,7,3,2,0,7,0,0,0,5,5,8,4,0,6,6,8,9, %T A384059 1,7,8,7,2,8,5,0,4,5,2,2,3,2,0,3,5,0,7,3,7,8,6,4,3,1,5,5,2,4,8,6,1,9, %U A384059 6,1,0,4,0,5,4,5,3,8,1,0,3,3,0,5,7,9,1 %N A384059 Decimal expansion of the circumradius of a regular pentagonal prism of edge length 1. %F A384059 Equals (1/2)*sqrt(3 + 2/sqrt(5)). %F A384059 Minimal polynomial: 80*x^4 - 120*x^2 + 41. - _Stefano Spezia_, May 18 2025 %e A384059 0.98671515532598310... %t A384059 RealDigits[1/2 * Sqrt(3 + 2/Sqrt(5)), 10, 100, -1][[1]] %Y A384059 Cf. A102771 (volume), A300074 (midradius), A384036 (surface area). %K A384059 nonn,cons %O A384059 0,1 %A A384059 _Kritsada Moomuang_, May 18 2025