OFFSET
1,3
COMMENTS
Lim_{n->oo} a(n)/n^2 = 1/2. - Stefan Steinerberger, Apr 16 2006
LINKS
G. C. Greubel, Table of n, a(n) for n = 1..1000
MATHEMATICA
Table[Sum[i, {i, Ceiling[Sqrt[n]], n}]-Sum[i, {i, 1, Floor[Sqrt[n]]}], {n, 1, 10}] (* Stefan Steinerberger, Apr 16 2006 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
N. J. A. Sloane, Apr 15 2006
STATUS
approved