A195773 Decimal expansion of arctan(6).

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

Offset

1,2

Links

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

Formula

From Amiram Eldar, Jun 05 2021: (Start)

Equals Pi/2 - A195774.

Equals arcsin(6/sqrt(37)) = arccos(1/sqrt(37)) = arccot(1/6). (End)

Example

arctan(6)=1.40564764938026978095219340199580798810...

Mathematica

r = 6;
N[ArcTan[r], 100]
RealDigits[%]  (* A195773 *)
N[ArcCot[r], 100]
RealDigits[%]  (* A195774 *)
N[ArcSec[r], 100]
RealDigits[%]  (* A195775 *)
N[ArcCsc[r], 100]
RealDigits[%]  (* A195776 *)

Crossrefs

Cf. A195774, A195775, A195776.

Sequence in context: A308108 A320374 A264757 * A153018 A102913 A197509

Adjacent sequences: A195770 A195771 A195772 * A195774 A195775 A195776

Keyword

nonn,cons

Author

Clark Kimberling, Sep 24 2011

Status

approved