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 A111493 #10 Aug 29 2025 07:05:34 %S A111493 0,0,0,3,0,4,6,7,9,2,9,1,6,4,8,2,9,1,5,9,2,4,9,9,5,1,4,1,9,2,2,6,3,7, %T A111493 0,2,7,2,6,5,3,6,6,3,5,8,5,5,8,4,3,9,7,3,7,8,0,6,8,8,5,6,2,1,3,3,9,9, %U A111493 7,0,7,9,9,9,7,6,5,7,6,7,1,6,5,2,2,6,6,7,1,0,9,0,6,8,8,8,9,2,3,1,2,7,2,9,5 %N A111493 Decimal expansion of the square of tan 1 degree. %C A111493 An algebraic integer with degree 24. - _Charles R Greathouse IV_, Aug 27 2017 %H A111493 <a href="/index/Al#algebraic_24">Index entries for algebraic numbers, degree 24</a> %F A111493 Equals A111486/A111590. - _R. J. Mathar_, Aug 29 2025 %e A111493 0.000304679291648291592499514192263702726536635855843973780688562133.... %o A111493 (PARI) tan(Pi/180)^2 \\ _Charles R Greathouse IV_, Aug 27 2017 %Y A111493 Cf. A019810, A019898. %K A111493 cons,nonn,changed %O A111493 0,4 %A A111493 _Mohammad K. Azarian_, Nov 21 2005