OFFSET
4,1
EXAMPLE
6565.2793565356265140...
MAPLE
evalf(-1/log(cos(Pi/180))) ; # R. J. Mathar, Oct 03 2011
PROG
(PARI) -1/log(cos(Pi/180)) \\ Charles R Greathouse IV, May 15 2019
CROSSREFS
KEYWORD
nonn,cons
AUTHOR
Mohammad K. Azarian, Nov 17 2005
EXTENSIONS
a(101)-a(103) corrected by Georg Fischer, Jul 16 2021
STATUS
approved