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 A019898 #23 Jul 08 2025 07:42:55 %S A019898 9,9,9,8,4,7,6,9,5,1,5,6,3,9,1,2,3,9,1,5,7,0,1,1,5,5,8,8,1,3,9,1,4,8, %T A019898 5,1,6,9,2,7,4,0,3,1,0,5,8,3,1,8,5,9,3,9,6,5,8,3,2,0,7,1,4,5,1,1,5,3, %U A019898 9,1,8,1,1,0,3,3,3,7,2,1,5,3,9,7,2,9,9,3,9,5,2,8,8,1,1,0,3,4,5 %N A019898 Decimal expansion of sine of 89 degrees. %C A019898 Also decimal expansion of cosine of 1 degree. - _Mohammad K. Azarian_, Nov 17 2005 %C A019898 Equals sin(89*Pi/180). - _Wesley Ivan Hurt_, Sep 01 2014 %C A019898 An algebraic number of degree 48 and denominator 2. - _Charles R Greathouse IV_, Aug 27 2017 %H A019898 Ivan Panchenko, <a href="/A019898/b019898.txt">Table of n, a(n) for n = 0..1000</a> %H A019898 <a href="/index/Al#algebraic_48">Index entries for algebraic numbers, degree 48</a> %e A019898 0.999847695156391239157011558813914851692740310583185939658320... %p A019898 Digits:=100: evalf(sin(89*Pi/180)); # _Wesley Ivan Hurt_, Sep 01 2014 %t A019898 RealDigits[N[Sin[89 Degree],6! ]][[1]] (*_Vladimir Joseph Stephan Orlovsky_, Jun 18 2009 *) %o A019898 (PARI) sin(89*Pi/180) \\ _Charles R Greathouse IV_, Aug 27 2017 %Y A019898 Cf. A019810. %K A019898 nonn,cons %O A019898 0,1 %A A019898 _N. J. A. Sloane_ %E A019898 Edited by _N. J. A. Sloane_, Aug 23 2008 at the suggestion of _R. J. Mathar_