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A195783
Decimal expansion of arcsec(8).
2
1, 4, 4, 5, 4, 6, 8, 4, 9, 5, 6, 2, 6, 8, 3, 1, 2, 2, 2, 3, 5, 6, 7, 5, 4, 7, 0, 5, 2, 8, 2, 6, 6, 6, 7, 2, 4, 0, 5, 0, 4, 3, 6, 9, 7, 2, 8, 4, 8, 8, 8, 0, 5, 3, 5, 2, 5, 3, 5, 0, 8, 2, 6, 5, 1, 6, 7, 4, 1, 4, 7, 6, 3, 8, 2, 9, 2, 6, 0, 5, 2, 9, 9, 2, 9, 6, 5, 5, 2, 2, 1, 8, 7, 8, 2, 0, 2, 6, 0, 7
OFFSET
1,2
FORMULA
From Amiram Eldar, May 30 2021: (Start)
Equals Pi/2 - A195784.
Equals arcsin(3*sqrt(7)/8) = arccos(1/8) = arctan(3*sqrt(7)). (End)
EXAMPLE
arcsec(8)=1.44546849562683122235675470528266672405043697284888...
MATHEMATICA
(See A195781.)
RealDigits[ArcSec[8], 10, 120][[1]] (* Harvey P. Dale, May 08 2023 *)
CROSSREFS
Sequence in context: A226446 A158086 A364995 * A376178 A360997 A167770
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Sep 24 2011
STATUS
approved