login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A017397 a(n) = (11*n)^9. 1
0, 2357947691, 1207269217792, 46411484401953, 618121839509504, 4605366583984375, 23762680013799936, 95151694449171437, 316478381828866048, 913517247483640899, 2357947691000000000, 5559917313492231481 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

Index entries for linear recurrences with constant coefficients, signature (10, -45, 120, -210, 252, -210, 120, -45, 10, -1).

FORMULA

a(n) = 10*a(n-1) - 45*a(n-2) + 120*a(n-3) - 210*a(n-4) + 252*a(n-5) - 210*a(n-6) + 120*a(n-7) - 45*a(n-8) + 10*a(n-9) - a(n-10); a(0)=0, a(1)=2357947691, a(2)=1207269217792, a(3)=46411484401953, a(4)=618121839509504, a(5)=4605366583984375, a(6)=23762680013799936, a(7)=95151694449171437, a(8)=316478381828866048, a(9)=913517247483640899. - Harvey P. Dale, Aug 27 2013

MATHEMATICA

(11*Range[0, 20])^9 (* or *) LinearRecurrence[{10, -45, 120, -210, 252, -210, 120, -45, 10, -1}, {0, 2357947691, 1207269217792, 46411484401953, 618121839509504, 4605366583984375, 23762680013799936, 95151694449171437, 316478381828866048, 913517247483640899}, 20] (* Harvey P. Dale, Aug 27 2013 *)

PROG

(MAGMA) [(11*n)^9: n in [0..20]]; // Vincenzo Librandi, Sep 02 2011

CROSSREFS

Sequence in context: A132907 A038685 A017289 * A017661 A307748 A131013

Adjacent sequences:  A017394 A017395 A017396 * A017398 A017399 A017400

KEYWORD

nonn,easy

AUTHOR

N. J. A. Sloane

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified October 18 01:39 EDT 2021. Contains 348065 sequences. (Running on oeis4.)