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A024087
a(n) = 7^n - n^12.
1
1, 6, -4047, -531098, -16774815, -244123818, -2176664687, -13840463658, -68713711935, -282389182874, -999717524751, -3136451049978, -8902259161055, -23201196112074, -56015689302447, -124998776380682, -248242046141055
OFFSET
0,2
LINKS
PROG
(Magma) [7^n-n^12: n in [0..20]]; // Vincenzo Librandi, Jul 04 2011
CROSSREFS
Sequence in context: A140173 A158663 A110106 * A161845 A317485 A209310
KEYWORD
sign,easy
STATUS
approved