OFFSET
1,1
COMMENTS
See A190347.
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..10000
FORMULA
MATHEMATICA
PROG
(PARI) for(n=1, 100, print1(2*n + floor(n*sqrt(5/3)) + floor(n/3), ", ")) \\ G. C. Greubel, Apr 05 2018
(Magma) [2*n + Floor(n*Sqrt(5/3)) + Floor(n/3): n in [1..100]]; // G. C. Greubel, Apr 05 2018
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, May 09 2011
STATUS
approved