A195771 - OEIS

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A195771

Decimal expansion of arcsec(5).

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

(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(2*sqrt(6)/5) = arccos(1/5) = arctan(2*sqrt(6)). - Amiram Eldar, May 24 2021

EXAMPLE

arcsec(5) = 1.3694384060045658277761961394221280318585...

MATHEMATICA

(See A195769.)