A017308 a(n) = (10*n + 3)^4.

81, 28561, 279841, 1185921, 3418801, 7890481, 15752961, 28398241, 47458321, 74805201, 112550881, 163047361, 228886641, 312900721, 418161601, 547981281, 705911761, 895745041, 1121513121, 1387488001

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.: -(81 + 28156*x + 137846*x^2 + 71516*x^3 + 2401*x^4)/(x-1)^5. - R. J. Mathar, Mar 20 2018

Prog

(Magma) [(10*n+3)^4: n in [0..30]]; // Vincenzo Librandi, Jul 31 2011

Crossrefs

Sequence in context: A100533 A088063 A017200 * A017428 A195274 A189149

Adjacent sequences: A017305 A017306 A017307 * A017309 A017310 A017311

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved