A019894 - OEIS

%I #14 Aug 21 2023 12:24:09

%S 9,9,6,1,9,4,6,9,8,0,9,1,7,4,5,5,3,2,2,9,5,0,1,0,4,0,2,4,7,3,8,8,8,0,

%T 4,6,1,8,3,5,6,2,6,7,2,6,4,5,8,5,0,9,7,4,5,2,5,4,4,2,2,7,7,3,8,0,1,1,

%U 6,7,4,9,8,3,8,2,5,1,5,9,9,6,7,4,1,8,6,3,8,6,2,5,9,6,5,1,9,2,1

%N Decimal expansion of sine of 85 degrees.

%H Ivan Panchenko, <a href="/A019894/b019894.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Al#algebraic_12">Index entries for algebraic numbers, degree 12</a>

%F Equals cos(Pi/36) = 2F1(13/24,11/24;1/2;3/4) / 2 . - _R. J. Mathar_, Oct 27 2008

%F Equals A019877 * A019882 + A019826 * A019831 = A019889 * A019894 + A019814 * A019819. - _R. J. Mathar_, Jan 27 2021

%K nonn,cons

%O 0,1

%A _N. J. A. Sloane_.