login
The OEIS is supported by the many generous donors to the OEIS Foundation.

 

Logo
Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A046998 a(n) = 1 - (7/6)*n + (2/3)*n^3 + (1/2)*n^4. 0

%I #11 Aug 07 2023 16:08:38

%S 1,1,12,56,167,391,786,1422,2381,3757,5656,8196,11507,15731,21022,

%T 27546,35481,45017,56356,69712,85311,103391,124202,148006,175077,

%U 205701,240176,278812,321931,369867,422966,481586,546097,616881,694332,778856,870871,970807

%N a(n) = 1 - (7/6)*n + (2/3)*n^3 + (1/2)*n^4.

%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (5,-10,10,-5,1).

%F G.f.: -(2*x^4-4*x^3+17*x^2-4*x+1)/(x-1)^5. - _Harvey P. Dale_, Aug 04 2023

%t Table[1-(7n)/6+(2n^3)/3+n^4/2,{n,0,40}] (* _Harvey P. Dale_, Aug 04 2023 *)

%K nonn,easy

%O 0,3

%A _N. J. A. Sloane_

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified April 19 05:19 EDT 2024. Contains 371782 sequences. (Running on oeis4.)