OFFSET
0,2
EXAMPLE
a(15)=15+9=24; a(16)=16+16=32; a(17)=17+16=33.
MATHEMATICA
Table[n+Floor[Sqrt[n]]^2, {n, 0, 70}] (* Harvey P. Dale, Aug 23 2012 *)
CROSSREFS
KEYWORD
nonn
AUTHOR
Henry Bottomley, May 12 2001
STATUS
approved