The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A195729 Decimal expansion of arctan(3). 1
 1, 2, 4, 9, 0, 4, 5, 7, 7, 2, 3, 9, 8, 2, 5, 4, 4, 2, 5, 8, 2, 9, 9, 1, 7, 0, 7, 7, 2, 8, 1, 0, 9, 0, 1, 2, 3, 0, 7, 7, 8, 2, 9, 4, 0, 4, 1, 2, 9, 8, 9, 6, 7, 1, 9, 0, 5, 4, 6, 6, 9, 2, 3, 6, 7, 9, 7, 1, 5, 1, 9, 6, 5, 7, 3, 7, 2, 9, 3, 9, 5, 4, 9, 5, 7, 6, 0, 8, 9, 9, 0, 3, 2, 0, 4, 1, 7, 1, 5, 9 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 COMMENTS Also arctan(1) + arctan(1/2). - Charles R Greathouse IV, Sep 23 2014 LINKS G. C. Greubel, Table of n, a(n) for n = 1..10000 EXAMPLE arctan(3) = 1.2490457723982544258299170772... MATHEMATICA r = 3; N[ArcTan[r], 100] RealDigits[%]  (* A195729 *) N[ArcCot[r], 100] RealDigits[%]  (* A105531 *) N[ArcSec[r], 100] RealDigits[%]  (* A137914 *) N[ArcCsc[r], 100] RealDigits[%]  (* A188615 *) PROG (PARI) atan(3) \\ Charles R Greathouse IV, Sep 23 2014 (MAGMA) SetDefaultRealField(RealField(100)); Arctan(3); // G. C. Greubel, Aug 20 2018 CROSSREFS Cf. A105531, A137914, A188615. Sequence in context: A335750 A062286 A071071 * A303950 A011181 A134822 Adjacent sequences:  A195726 A195727 A195728 * A195730 A195731 A195732 KEYWORD nonn,cons AUTHOR Clark Kimberling, Sep 23 2011 STATUS approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

Last modified August 12 05:33 EDT 2020. Contains 336438 sequences. (Running on oeis4.)