OFFSET
0,2
FORMULA
From Amiram Eldar, Jun 05 2021: (Start)
Equals Pi/2 - A195775.
Equals arcsin(1/6) = arccos(sqrt(35)/6) = arctan(1/sqrt(35)). (End)
EXAMPLE
0.167448079219689330553274606043638220...
MATHEMATICA
(See A195773.)
PROG
(PARI) asin(1/6) \\ Michel Marcus, Jun 05 2021
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Clark Kimberling, Sep 24 2011
STATUS
approved