OFFSET
1,2
COMMENTS
Cubes a(1-1),a(8-1),a(27-1),a(64-1),...
FORMULA
a(n) = n^9 - 3n^6 + 3n^3 - 1.
G.f.: (x^9-2*x^8+694*x^7+14902*x^6+87160*x^5+155914*x^4+89722*x^3+14146*x^2+ 343*x)/(x-1)^10. - Harvey P. Dale, Mar 25 2013 [corrected by Georg Fischer, May 15 2019]
MATHEMATICA
(Range[20]^3-1)^3 (* Harvey P. Dale, Mar 25 2013 *)
CROSSREFS
KEYWORD
nonn,easy
AUTHOR
Luc Stevens (lms022(AT)yahoo.com), Apr 21 2006
EXTENSIONS
Edited and corrected by Franklin T. Adams-Watters, Apr 26 2006
STATUS
approved