login

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 61st year, we have over 378,000 sequences, and we’ve reached 11,000 citations (which often say “discovered thanks to the OEIS”).

A019979
Decimal expansion of tangent of 81 degrees.
1
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
OFFSET
1,1
COMMENTS
Also the decimal expansion of cotangent of 9 degrees. - Ivan Panchenko, Sep 01 2014
CROSSREFS
Sequence in context: A238260 A021617 A140321 * A085580 A092151 A365477
KEYWORD
nonn,cons
AUTHOR
STATUS
approved