A073442 Decimal expansion of cot (Pi degrees) (of course cot (Pi radians) is undefined).

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

Offset

2,2

Links

Table of n, a(n) for n=2..106.

Example

18.2195323461120376322202297457...

Mathematica

RealDigits[Cot[Pi Degree], 10, 120][[1]] (* Amiram Eldar, Mar 22 2026 *)

Prog

(PARI) cotan(Pi^2/180)

Crossrefs

Cf. A051555 (tan(Pi degrees)=1/A073442), A051553 (sin(Pi degrees)), A051554 (cos(Pi degrees)), A073440 (csc(Pi degrees)), A073441 (sec(Pi degrees)).

Sequence in context: A179640 A274420 A147868 * A177428 A130617 A362662

Adjacent sequences: A073439 A073440 A073441 * A073443 A073444 A073445

Keyword

cons,nonn

Author

Rick L. Shepherd, Jul 31 2002

Status

approved