OFFSET
1,1
COMMENTS
See A189750.
MATHEMATICA
(See A189750.)
Table[n+Floor[n/ArcTan[1/3]]+Floor[n (ArcTan[2/3])/ArcTan[1/3]], {n, 70}] (* Harvey P. Dale, Jul 12 2024 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Clark Kimberling, Apr 26 2011
STATUS
approved