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A019985 Decimal expansion of tangent of 87 degrees. 2
1, 9, 0, 8, 1, 1, 3, 6, 6, 8, 7, 7, 2, 8, 2, 1, 1, 0, 6, 3, 4, 0, 6, 7, 4, 8, 7, 3, 4, 3, 6, 5, 3, 4, 9, 3, 0, 8, 2, 5, 0, 9, 6, 1, 2, 1, 8, 1, 1, 1, 2, 6, 5, 8, 3, 9, 0, 9, 5, 9, 7, 4, 6, 9, 8, 2, 9, 2, 6, 5, 7, 5, 6, 0, 8, 8, 8, 0, 7, 3, 0, 6, 8, 9, 9, 9, 7, 1, 2, 4, 1, 7, 5, 6, 6, 2, 8, 0, 3 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

2,2

COMMENTS

Also the decimal expansion of cotangent of 3 degrees. - Mohammad K. Azarian, Jun 29 2013

An algebraic integer of degree 8. - Charles R Greathouse IV, Aug 27 2017

LINKS

Ivan Panchenko, Table of n, a(n) for n = 2..1000

Wikipedia, Exact trigonometric constants

MATHEMATICA

RealDigits[Tan[87 Degree], 10, 120][[1]] (* Harvey P. Dale, Sep 08 2015 *)

PROG

(PARI) tan(87*Pi/180) \\ Charles R Greathouse IV, Aug 27 2017

CROSSREFS

Sequence in context: A248935 A202955 A019820 * A242711 A178229 A021995

Adjacent sequences:  A019982 A019983 A019984 * A019986 A019987 A019988

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane.

STATUS

approved

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Last modified October 18 10:34 EDT 2019. Contains 328147 sequences. (Running on oeis4.)