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A019976
Decimal expansion of tangent of 78 degrees.
3
4, 7, 0, 4, 6, 3, 0, 1, 0, 9, 4, 7, 8, 4, 5, 4, 2, 3, 3, 5, 8, 6, 2, 3, 4, 5, 3, 7, 4, 0, 2, 9, 0, 0, 2, 7, 5, 6, 9, 9, 2, 6, 0, 7, 4, 7, 8, 0, 2, 4, 8, 6, 1, 7, 2, 2, 1, 6, 3, 0, 1, 6, 6, 1, 6, 4, 3, 0, 1, 4, 3, 9, 4, 5, 9, 3, 2, 7, 6, 5, 3, 8, 7, 3, 7, 8, 0, 2, 4, 0, 3, 7, 4, 9, 5, 8, 3, 8, 1
OFFSET
1,1
COMMENTS
Also the decimal expansion of cotangent of 12 degrees. - Ivan Panchenko, Sep 01 2014
An algebraic integer of degree 8. - Charles R Greathouse IV, Nov 05 2017
PROG
(PARI) 1/tan(Pi/15) \\ Charles R Greathouse IV, Nov 05 2017
CROSSREFS
Sequence in context: A023961 A147863 A358662 * A021072 A195791 A331790
KEYWORD
nonn,cons
AUTHOR
STATUS
approved