A117041 Decimal expansion of (cos 1)^(-2)=(sec(1))^2.

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

Offset

1,1

Comments

By the Lindemann-Weierstrass theorem, this constant is transcendental. - Charles R Greathouse IV, May 13 2019

Links

Table of n, a(n) for n=1..105.

Index entries for transcendental numbers

Example

3.42551882081475976094167893354113664805374743205738476586851476

Mathematica

RealDigits[1/Cos[1]^2, 10, 120][[1]] (* Harvey P. Dale, Jul 27 2021 *)

Prog

(PARI) cos(1)^-2 \\ Charles R Greathouse IV, May 13 2019

Crossrefs

Cf. A049470, A073448.

Sequence in context: A139525 A246832 A133570 * A209688 A143939 A197269

Adjacent sequences: A117038 A117039 A117040 * A117042 A117043 A117044

Keyword

cons,nonn,less

Author

Mohammad K. Azarian, Apr 16 2006

Status

approved