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%I #21 Aug 21 2023 11:49:06
%S 4,6,9,4,7,1,5,6,2,7,8,5,8,9,0,7,7,5,9,5,9,4,6,2,2,8,8,2,2,7,8,4,3,2,
%T 9,5,7,2,3,2,1,8,7,5,6,7,1,1,1,9,6,8,0,8,3,3,6,1,0,8,2,9,9,3,9,0,8,9,
%U 9,7,9,2,1,7,4,1,5,9,3,2,2,9,9,4,1,4,7,7,2,7,9,8,0,6,9,6,5,1,3
%N Decimal expansion of sine of 28 degrees.
%C An algebraic number of degree 24 and denominator 2. - _Charles R Greathouse IV_, Aug 27 2017
%H Ivan Panchenko, <a href="/A019837/b019837.txt">Table of n, a(n) for n = 0..1000</a>
%H <a href="/index/Al#algebraic_24">Index entries for algebraic numbers, degree 24</a>
%F Equals 2*A019823*A019885. - _R. J. Mathar_, Jan 17 2021
%e 0.469471562...
%t RealDigits[Sin[28 Degree],10,120][[1]] (* _Harvey P. Dale_, Apr 19 2023 *)
%o (PARI) sin(7*Pi/45) \\ _Charles R Greathouse IV_, Aug 27 2017
%K nonn,cons
%O 0,1
%A _N. J. A. Sloane_
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