OFFSET
0,3
LINKS
Zak Seidov, Table of n, a(n) for n = 0..2000
EXAMPLE
a(4)=8 because 4^2 - 2^3 = 8; a(9)=17 because 9^2 - 4^3 = 17.
A077106(20) = 343 = 7^3 is the largest cube <= 20^2 = 400, therefore a(20) = 400 - 343 = 57.
MATHEMATICA
Table[a = n^2; a - Floor[a^(1/3)]^3, {n, 0, 300}] (* Vladimir Joseph Stephan Orlovsky, Jun 03 2011 *)
CROSSREFS
KEYWORD
easy,nonn
AUTHOR
Zak Seidov and Reinhard Zumkeller, Oct 15 2002
EXTENSIONS
Edited by N. J. A. Sloane at the suggestion of Zak Seidov, Oct 30 2008
STATUS
approved