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!)
A025974 Expansion of 1/((1-2x)(1-4x)(1-7x)(1-11x)). 0
1, 24, 383, 5166, 63993, 756108, 8690611, 98243322, 1099333565, 12223792152, 135381670359, 1495646457318, 16497281164417, 181786417955556, 2001865410394427, 22036025351972754, 242504828325007749 (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 (24,-193,606,-616).

FORMULA

a(n) = -4*2^n/45 + 32*4^n/21 - 343*7^n/60 + 1331*11^n/252. - R. J. Mathar, Jun 20 2013

From Wesley Ivan Hurt, Jun 26 2022: (Start)

G.f.: 1/((1-2*x)*(1-4*x)*(1-7*x)*(1-11*x)).

a(n) = 24*a(n-1) - 193*a(n-2) + 606*a(n-3) - 616*a(n-4). (End)

MATHEMATICA

CoefficientList[Series[1/((1-2x)(1-4x)(1-7x)(1-11x)), {x, 0, 20}], x] (* Harvey P. Dale, Apr 05 2021 *)

CROSSREFS

Sequence in context: A023951 A025990 A022565 * A059157 A228406 A087292

Adjacent sequences:  A025971 A025972 A025973 * A025975 A025976 A025977

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 | Recents
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 16 20:45 EDT 2022. Contains 356169 sequences. (Running on oeis4.)