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 A019870 #15 Jul 08 2025 07:41:36 %S A019870 8,7,4,6,1,9,7,0,7,1,3,9,3,9,5,8,0,0,2,8,4,6,3,6,9,5,8,6,6,1,0,7,9,5, %T A019870 0,6,8,5,6,3,0,6,3,8,5,1,1,3,2,1,0,2,7,8,4,2,7,6,1,8,0,7,3,3,9,2,0,7, %U A019870 6,4,0,7,4,0,1,6,1,0,0,1,0,5,9,1,6,6,1,0,3,7,7,8,8,3,6,3,8,8,0 %N A019870 Decimal expansion of sine of 61 degrees. %C A019870 An algebraic number of degree 48 and denominator 2. - _Charles R Greathouse IV_, Nov 05 2017 %H A019870 Ivan Panchenko, <a href="/A019870/b019870.txt">Table of n, a(n) for n = 0..1000</a> %H A019870 <a href="/index/Al#algebraic_48">Index entries for algebraic numbers, degree 48</a> %t A019870 RealDigits[Sin[61 Degree],10,120][[1]] (* _Harvey P. Dale_, Jan 04 2022 *) %o A019870 (PARI) sin(61/180*Pi) \\ _Charles R Greathouse IV_, Nov 05 2017 %K A019870 nonn,cons %O A019870 0,1 %A A019870 _N. J. A. Sloane_