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Decimal expansion of tangent of 81 degrees.
1

%I #9 Sep 01 2014 08:26:30

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

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

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

%N Decimal expansion of tangent of 81 degrees.

%C Also the decimal expansion of cotangent of 9 degrees. - _Ivan Panchenko_, Sep 01 2014

%H Ivan Panchenko, <a href="/A019979/b019979.txt">Table of n, a(n) for n = 1..1000</a>

%H Wikipedia, <a href="http://en.wikipedia.org/wiki/Exact_trigonometric_constants">Exact trigonometric constants</a>

%K nonn,cons

%O 1,1

%A _N. J. A. Sloane_.