OFFSET
0,2
LINKS
Vincenzo Librandi, Table of n, a(n) for n = 0..200
FORMULA
a(n) = 3^n - n^6.
MAPLE
PROG
(Magma) [3^n-n^6 : n in [0..30]]; // Vincenzo Librandi, May 17 2011
CROSSREFS
KEYWORD
sign
AUTHOR
STATUS
approved