OFFSET
1,2
COMMENTS
See A184812.
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
MATHEMATICA
(See A184812.)
PROG
(PARI) a(n) = n + floor(n*sqrt(2/5)) + floor(n*sqrt(3/5)); \\ Michel Marcus, Jul 01 2017
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Jan 22 2011
STATUS
approved