A113794 Decimal expansion of (cotangent of 1 degree)^2.

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

Offset

4,1

Links

Table of n, a(n) for n=4..108.

Index entries for algebraic numbers, degree 24.

Example

3282.139703653887... = 1/A111493.

Maple

cot(Pi/180)^2; evalf(%) ; # R. J. Mathar, Apr 03 2011

Mathematica

RealDigits[Cot[1 Degree]^2, 10, 120][[1]] (* Harvey P. Dale, Mar 12 2023 *)

Prog

(PARI) 1/tan(Pi/180)^2 \\ Stefano Spezia, Dec 08 2025

Crossrefs

Cf. A019987, A073449, A111493.

Sequence in context: A391293 A197412 A275373 * A086774 A153461 A231981

Adjacent sequences: A113791 A113792 A113793 * A113795 A113796 A113797

Keyword

nonn,cons

Author

Mohammad K. Azarian, Jan 21 2006

Extensions

Offset changed by Mohammad K. Azarian, Dec 13 2008

Status

approved