%I #22 Aug 04 2024 19:38:37

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

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

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

%N Decimal expansion of tangent of 10 degrees.

%C Also the decimal expansion of cotangent of 80 degrees. - _Mohammad K. Azarian_, Jun 30 2013

%H Ivan Panchenko, <a href="/A019908/b019908.txt">Table of n, a(n) for n = 0..1000</a>

%e 0.176326980708464973471090386868618986121633...

%t RealDigits[Tan[10 Degree],10,120][[1]] (* _Harvey P. Dale_, Oct 14 2012 *)

%o (PARI) tan(Pi/18) \\ _Hugo Pfoertner_, Aug 04 2024

%Y Cf. A019918.

%K nonn,cons

%O 0,2

%A _N. J. A. Sloane_.