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 A180317 #13 Feb 16 2025 08:33:13 %S A180317 0,2,1,6,5,0,6,3,5,0,9,4,6,1,0,9,6,6,1,6,9,0,9,3,0,7,9,2,6,8,8,2,3,4, %T A180317 0,4,5,8,6,7,8,5,0,6,5,6,7,2,6,2,9,7,5,7,8,5,0,6,9,7,5,8,7,2,4,3,1,4, %U A180317 9,1,6,2,7,1,1,3,6,0,0,0,0,4,6,3,5,1,4,3,2,7,3,3,4,4,6,5,6,0,7,1,9,5,9,4,5 %N A180317 Decimal expansion of the torsional rigidity constant for an equilateral triangular shaft. %H A180317 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/TorsionalRigidity.html">Torsional Rigidity</a>. %F A180317 Equals sqrt(3)/80. %e A180317 0.02165063509461096616... %t A180317 RealDigits[Sqrt[3]/80, 10, 100][[1]] (* _Amiram Eldar_, Jun 09 2021 *) %Y A180317 Cf. A180309, A180310, A180311, A180314. %K A180317 nonn,cons %O A180317 0,2 %A A180317 _Eric W. Weisstein_, Aug 27 2010