A017345 a(n) = (10*n + 6)^5.

7776, 1048576, 11881376, 60466176, 205962976, 550731776, 1252332576, 2535525376, 4704270176, 8153726976, 13382255776, 21003416576, 31757969376, 46525874176, 66338290976, 92389579776, 126049300576

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.: 32*(32*x^5 + 16615*x^4 + 148470*x^3 + 178330*x^2 + 31310*x + 243)/(x-1)^6. [Colin Barker, Sep 17 2012]

Mathematica

(10 Range[0, 20]+6)^5 (* or *) LinearRecurrence[{6, -15, 20, -15, 6, -1}, {7776, 1048576, 11881376, 60466176, 205962976, 550731776}, 20] (* Harvey P. Dale, Jul 06 2023 *)

Prog

(Magma) [(10*n+6)^5: n in [0..20]]; // Vincenzo Librandi, Aug 03 2011

Crossrefs

Sequence in context: A017141 A017237 A223274 * A017465 A017597 A223361

Adjacent sequences: A017342 A017343 A017344 * A017346 A017347 A017348

Keyword

nonn,easy

Author

N. J. A. Sloane

Status

approved