A024045 a(n) = 4^n-n^9.

1, 3, -496, -19619, -261888, -1952101, -10073600, -40337223, -134152192, -387158345, -998951424, -2353753387, -5143003136, -10537390509, -20392611328, -37369617551, -64424509440, -101408007313, -129639813632

Offset: 0

Author

N. J. A. Sloane

Keywords

• sign
• easy

Links

• Vincenzo Librandi, Table of n, a(n) for n = 0..500

Programs

Magma

[4^n-n^9: n in [0..30]]; // Vincenzo Librandi, Jul 02 2011