OFFSET
0,4
COMMENTS
a(n) = 0 if and only if n is a square.
MATHEMATICA
Table[Floor[n^(3/2)] - Floor[n^(1/2)]^3, {n, 0, 120}]
PROG
(PARI) a(n) = sqrtint(n^3) - sqrtint(n)^3; \\ Michel Marcus, Jun 24 2022
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Clark Kimberling, Jun 21 2022
STATUS
approved