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!)
A028041 Expansion of 1/((1-3x)(1-4x)(1-7x)(1-11x)). 0
1, 25, 410, 5630, 70551, 839775, 9697720, 109955260, 1232712701, 13723263125, 152103875430, 1681194742890, 18549572478451, 204440573062075, 2251614293669540, 24787137412192520, 272794189857639801 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..16.

Index entries for linear recurrences with constant coefficients, signature (25,-215,755,-924).

FORMULA

a(n)=(3*11^(n+3)-2*7^(n+4)+2*4^(n+5)-7*3^(n+4))/672. [Yahia Kahloune, Jun 07 2013]

MATHEMATICA

CoefficientList[Series[1/((1-3x)(1-4x)(1-7x)(1-11x)), {x, 0, 20}], x] (* or *) LinearRecurrence[{25, -215, 755, -924}, {1, 25, 410, 5630}, 20] (* Harvey P. Dale, Aug 23 2017 *)

CROSSREFS

Sequence in context: A260953 A025998 A024437 * A025995 A023955 A025980

Adjacent sequences:  A028038 A028039 A028040 * A028042 A028043 A028044

KEYWORD

nonn

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 January 18 11:57 EST 2022. Contains 350455 sequences. (Running on oeis4.)