A195785 Decimal expansion of arctan(9).

1, 4, 6, 0, 1, 3, 9, 1, 0, 5, 6, 2, 1, 0, 0, 0, 9, 7, 2, 6, 7, 2, 1, 8, 1, 8, 1, 9, 4, 2, 9, 6, 8, 9, 3, 3, 6, 1, 2, 3, 2, 9, 8, 6, 0, 4, 6, 8, 4, 4, 8, 8, 8, 7, 8, 3, 6, 4, 6, 5, 7, 8, 5, 3, 0, 4, 6, 2, 6, 2, 9, 9, 7, 4, 0, 2, 6, 0, 5, 7, 8, 5, 5, 4, 8, 7, 8, 8, 5, 2, 3, 2, 3, 7, 5, 7, 0, 5, 6, 0

Offset

1,2

Links

Table of n, a(n) for n=1..100.

Example

arctan(9)=1.46013910562100097267218181942968933612...

Mathematica

r = 9;
N[ArcTan[r], 100]
RealDigits[%]  (* A195785 *)
N[ArcCot[r], 100]
RealDigits[%]  (* A195786 *)
N[ArcSec[r], 100]
RealDigits[%]  (* A195787 *)
N[ArcCsc[r], 100]
RealDigits[%]  (* A195788 *)

Crossrefs

Cf. A195786, A195797, A195798.

Sequence in context: A056945 A324472 A070683 * A184187 A106145 A198372

Adjacent sequences: A195782 A195783 A195784 * A195786 A195787 A195788

Keyword

nonn,cons

Author

Clark Kimberling, Sep 24 2011

Status

approved