A111691 - OEIS

A111691

Decimal expansion of the fourth root of cosine of 1 degree.

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

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OFFSET

0,1

COMMENTS

An algebraic number of degree 192 and denominator 2. - Charles R Greathouse IV, Aug 26 2017

LINKS

Table of n, a(n) for n=0..99.

Index entries for algebraic numbers, degree 192

MATHEMATICA

First[RealDigits[Cos[Pi/180]^(1/4), 10, 100]] (* Paolo Xausa, Jun 18 2024 *)

PROG

(PARI) sqrtn(cos(Pi/180), 4) \\ Charles R Greathouse IV, Aug 26 2017

CROSSREFS

Cf. A019810.

Sequence in context: A258816 A291430 A146494 * A093409 A111692 A231984

Adjacent sequences: A111688 A111689 A111690 * A111692 A111693 A111694

KEYWORD

nonn,cons

AUTHOR

Mohammad K. Azarian, Nov 17 2005

STATUS

approved

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