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 A024081 a(n) = 7^n - n^6. 2
 1, 6, -15, -386, -1695, 1182, 70993, 705894, 5502657, 39822166, 281475249, 1975555182, 13838301217, 96884183598, 678215543313, 4747550119318, 33232913792385, 232630489849638, 1628413563898225, 11398895138327262 (list; graph; refs; listen; history; text; internal format)
 OFFSET 0,2 LINKS Vincenzo Librandi, Table of n, a(n) for n = 0..400 Index entries for linear recurrences with constant coefficients, signature (14,-70,182,-280,266,-154,50,-7). MATHEMATICA Table[7^n-n^6, {n, 0, 30}] (* Harvey P. Dale, May 28 2019 *) PROG (MAGMA) [7^n-n^6: n in [0..20]]; // Vincenzo Librandi, Jul 2011 CROSSREFS Sequence in context: A335578 A199095 A235230 * A145558 A145612 A307812 Adjacent sequences:  A024078 A024079 A024080 * A024082 A024083 A024084 KEYWORD sign,easy AUTHOR STATUS approved

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Last modified December 1 14:10 EST 2021. Contains 349430 sequences. (Running on oeis4.)