OFFSET
1,1
COMMENTS
See A190085.
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
FORMULA
MATHEMATICA
PROG
(PARI) for(n=1, 100, print1(n + floor(n/cos(1/2)) + floor(n*tan(1/2)), ", ")) \\ G. C. Greubel, Mar 04 2018
(Magma) [n + Floor(n/Cos(1/2)) + Floor(n*Tan(1/2)): n in [1..100]]; // G. C. Greubel, Mar 04 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, May 04 2011
STATUS
approved