A016915 a(n) = (6*n)^7.

0, 279936, 35831808, 612220032, 4586471424, 21870000000, 78364164096, 230539333248, 587068342272, 1338925209984, 2799360000000, 5455160701056, 10030613004288, 17565568854912, 29509034655744

Offset

0,2

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..2000

Index entries for linear recurrences with constant coefficients, signature (8, -28, 56, -70, 56, -28, 8, -1).

Formula

G.f.: (279936*(x + 120*x^2 + 1191*x^3 + 2416*x^4 + 1191*x^5 + 120*x^6 + x^7))/ (x-1)^8. - Harvey P. Dale, Jul 20 2011

Mathematica

(6*Range[0, 20])^7 (* Harvey P. Dale, Jul 20 2011 *)

Prog

(Magma) [(6*n)^7: n in [0..30]]; // Vincenzo Librandi, May 03 2011

Crossrefs

Cf. A001015, A008588.

Sequence in context: A204396 A013909 A016867 * A183621 A017059 A017143

Adjacent sequences: A016912 A016913 A016914 * A016916 A016917 A016918

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved