A017213 a(n) = (9*n + 4)^5.

1024, 371293, 5153632, 28629151, 102400000, 282475249, 656356768, 1350125107, 2535525376, 4437053125, 7339040224, 11592740743, 17623416832, 25937424601, 37129300000, 51888844699, 71008211968

Offset

0,1

Links

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

Index entries for linear recurrences with constant coefficients, signature (6,-15,20,-15,6,-1).

Formula

G.f.: ( 1024 + 365149*x + 2941234*x^2 + 3256274*x^3 + 519074*x^4 + 3125*x^5 ) / (x-1)^6. - R. J. Mathar, Jul 14 2016

Mathematica

(9*Range[0, 20]+4)^5 (* or *) LinearRecurrence[{6, -15, 20, -15, 6, -1}, {1024, 371293, 5153632, 28629151, 102400000, 282475249}, 20] (* Harvey P. Dale, Sep 04 2024 *)

Prog

(Magma) [(9*n+4)^5: n in [0..25]]; // Vincenzo Librandi, Jul 24 2011

Crossrefs

Sequence in context: A017033 A017117 A269293 * A221092 A017321 A223267

Adjacent sequences: A017210 A017211 A017212 * A017214 A017215 A017216

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved