A017284 a(n) = (10*n + 1)^4.

1, 14641, 194481, 923521, 2825761, 6765201, 13845841, 25411681, 43046721, 68574961, 104060401, 151807041, 214358881, 294499921, 395254161, 519885601, 671898241, 855036081, 1073283121, 1330863361, 1632240801, 1982119441, 2385443281

Offset

0,2

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.: (1 + 14636*x + 121286*x^2 + 97516*x^3 + 6561*x^4)/(1-x)^5. - Bruno Berselli, Jul 30 2011

Mathematica

(10*Range[0, 30]+1)^4 (* or *) LinearRecurrence[{5, -10, 10, -5, 1}, {1, 14641, 194481, 923521, 2825761}, 30] (* Harvey P. Dale, Dec 13 2013 *)

Prog

(Magma) [(10*n+1)^4: n in [0..30]]; // Vincenzo Librandi, Jul 30 2011
(PARI) for(n=0, 22, print1((10*n+1)^4", ")); \\ Bruno Berselli, Jul 30 2011

Crossrefs

Sequence in context: A133858 A023683 A231118 * A017392 A017656 A186080

Adjacent sequences: A017281 A017282 A017283 * A017285 A017286 A017287

Keyword

nonn,easy

Author

N. J. A. Sloane

Extensions

More terms from Bruno Berselli, Jul 30 2011

Status

approved