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A024045
a(n) = 4^n-n^9.
2
1, 3, -496, -19619, -261888, -1952101, -10073600, -40337223, -134152192, -387158345, -998951424, -2353753387, -5143003136, -10537390509, -20392611328, -37369617551, -64424509440, -101408007313, -129639813632
OFFSET
0,2
LINKS
PROG
(Magma) [4^n-n^9: n in [0..30]]; // Vincenzo Librandi, Jul 02 2011
CROSSREFS
Sequence in context: A142801 A057632 A245245 * A334304 A255017 A160362
KEYWORD
sign,easy
AUTHOR
STATUS
approved