A017212 a(n) = (9*n + 4)^4.

256, 28561, 234256, 923521, 2560000, 5764801, 11316496, 20151121, 33362176, 52200625, 78074896, 112550881, 157351936, 214358881, 285610000, 373301041, 479785216, 607573201, 759333136, 937890625

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.: ( -256 - 27281*x - 94011*x^2 - 35291*x^3 - 625*x^4 ) / (x-1)^5. - R. J. Mathar, Jul 14 2016

Prog

(Magma) [(9*n+4)^4: n in [0..35]]; // Vincenzo Librandi, Jul 24 2011

Crossrefs

Sequence in context: A205948 A309827 A205019 * A181243 A205634 A269292

Adjacent sequences: A017209 A017210 A017211 * A017213 A017214 A017215

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved