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A019979

Decimal expansion of tangent of 81 degrees.

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, 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, 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

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OFFSET

1,1

COMMENTS

Also the decimal expansion of cotangent of 9 degrees. - Ivan Panchenko, Sep 01 2014

LINKS

Ivan Panchenko, Table of n, a(n) for n = 1..1000

Wikipedia, Exact trigonometric constants

CROSSREFS

Sequence in context: A238260 A021617 A140321 * A085580 A092151 A365477

Adjacent sequences: A019976 A019977 A019978 * A019980 A019981 A019982

KEYWORD

nonn,cons

AUTHOR

N. J. A. Sloane.

STATUS

approved