OFFSET
1,16
MATHEMATICA
Table[Floor[Sqrt[n]]-Floor[CubeRoot[n]], {n, 90}] (* Harvey P. Dale, Mar 22 2023 *)
PROG
(PARI) a(n)=sqrtint(n)-floor((n+.5)^(1/3)) \\ Charles R Greathouse IV, Jan 03 2013
CROSSREFS
KEYWORD
nonn,easy,base
AUTHOR
Vladimir Shevelev, May 29 2011
STATUS
approved