A195769 - OEIS

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A195769

Decimal expansion of arctan(5).

3

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

(list; constant; graph; refs; listen; history; text; internal format)

OFFSET

1,2

LINKS

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

Index entries for transcendental numbers

FORMULA

Equals arcsin(5/sqrt(26)) = arccos(1/sqrt(26)). - Amiram Eldar, Jul 11 2023

EXAMPLE

arctan(5) = 1.373400766945015860861271926444961148650999...

MATHEMATICA

r = 5;

N[ArcTan[r], 100]

RealDigits[%] (* A195769 *)

N[ArcCot[r], 100]

RealDigits[%] (* A105532 *)

N[ArcSec[r], 100]

RealDigits[%] (* A195771 *)

N[ArcCsc[r], 100]

RealDigits[%] (* A195772 *)

PROG

(PARI) atan(5) \\ Charles R Greathouse IV, Nov 20 2024

CROSSREFS

Cf. A105532, A195771, A195772.

Sequence in context: A375553 A113584 A111383 * A021968 A132821 A247217

Adjacent sequences: A195766 A195767 A195768 * A195770 A195771 A195772

KEYWORD

nonn,cons,changed

AUTHOR

Clark Kimberling, Sep 24 2011

STATUS

approved