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 A380737 #6 Feb 02 2025 04:25:05 %S A380737 9,6,0,3,6,2,1,1,7,7,0,7,7,9,5,7,3,5,7,4,0,1,3,9,1,5,2,3,1,4,5,7,6,8, %T A380737 5,6,4,7,7,7,7,0,8,1,7,7,0,8,1,3,1,0,9,9,4,3,2,2,1,9,9,7,5,5,3,8,7,1, %U A380737 0,3,7,5,8,0,9,8,6,0,8,1,7,6,0,2,2,4,2,3,7,6 %N A380737 Decimal expansion of the medium vertex angle, in radians, in a disdyakis dodecahedron face. %C A380737 A disdyakis dodecahedron face is a scalene triangle with three acute angles. %H A380737 Paolo Xausa, <a href="/A380737/b380737.txt">Table of n, a(n) for n = 0..10000</a> %H A380737 Wikipedia, <a href="https://en.wikipedia.org/wiki/Disdyakis_dodecahedron">Disdyakis dodecahedron</a>. %F A380737 Equals arccos(3/4 - sqrt(2)/8) = arccos(3/4 - A020789). %F A380737 Equals Pi - A380736 - A380738. %e A380737 0.96036211770779573574013915231457685647777081770813... %t A380737 First[RealDigits[ArcCos[3/4 - Sqrt[2]/8], 10, 100]] %Y A380737 Cf. A380736 (face smallest angle), A380738 (face largest angle). %Y A380737 Cf. A020789, A378393, A378712, A378713, A378714, A378715, A380734, A380735. %K A380737 nonn,cons,easy %O A380737 0,1 %A A380737 _Paolo Xausa_, Feb 01 2025