OFFSET
1,1
COMMENTS
Also the decimal expansion of cotangent of 21 degrees. - Ivan Panchenko, Sep 01 2014
LINKS
Ivan Panchenko, Table of n, a(n) for n = 1..1000
Wikipedia, Exact trigonometric constants
EXAMPLE
2.605089064693801536258412336433541186093287267943195023752...
MATHEMATICA
RealDigits[Tan[23*Pi/60], 10, 100][[1]] (* G. C. Greubel, Nov 20 2018 *)
PROG
(PARI) default(realprecision, 100); tan(23*Pi/60) \\ G. C. Greubel, Nov 21 2018
(Magma) SetDefaultRealField(RealField(100)); R:= RealField(); Tan(23*Pi(R)/60); // G. C. Greubel, Nov 21 2018
(Sage) numerical_approx(tan(23*pi/60), digits=100) # G. C. Greubel, Nov 21 2018
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
STATUS
approved