A017152 a(n) = (8*n + 7)^4.

2401, 50625, 279841, 923521, 2313441, 4879681, 9150625, 15752961, 25411681, 38950081, 57289761, 81450625, 112550881, 151807041, 200533921, 260144641, 332150625, 418161601, 519885601, 639128961, 777796321, 937890625, 1121513121, 1330863361, 1568239201, 1836036801

Offset

0,1

Links

Vincenzo Librandi, Table of n, a(n) for n = 0..10000

Index entries for linear recurrences with constant coefficients, signature (5,-10,10,-5,1).

Formula

G.f.: ( -2401 - 38620*x - 50726*x^2 - 6556*x^3 - x^4 ) / ( (x-1)^5 ). - R. J. Mathar, Aug 26 2015

a(n) = 5*a(n-1) - 10*a(n-2) + 10*a(n-3) - 5*a(n-4) + a(n-5). - Wesley Ivan Hurt, Feb 12 2026

Mathematica

(8*Range[0, 25] + 7)^4 (* Paolo Xausa, Dec 05 2025 *)

Prog

(Magma) [(8*n+7)^4: n in [0..35]]; // Vincenzo Librandi, Jul 22 2011

Crossrefs

Sequence in context: A074384 A016924 A016984 * A017248 A017356 A017476

Adjacent sequences: A017149 A017150 A017151 * A017153 A017154 A017155

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved