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!)
A028042 Expansion of 1/((1-3x)(1-4x)(1-7x)(1-12x)). 0
1, 26, 447, 6484, 86429, 1100862, 13670539, 167326808, 2031126537, 24536941858, 295591283351, 3555147513372, 42718200467125, 513013681404614, 6158932166842083, 73926566183932576, 887254472530712993 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

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

FORMULA

a(n)=(12^(n+3)-6*7^(n+3)+15*4^(n+3)-10*3^(n+3))/360. [Yahia Kahloune, Jun 07 2013]

MATHEMATICA

CoefficientList[Series[1/((1-3x)(1-4x)(1-7x)(1-12x)), {x, 0, 20}], x]  (* Harvey P. Dale, Feb 22 2011 *)

CROSSREFS

Sequence in context: A028058 A331881 A024170 * A023956 A025981 A025996

Adjacent sequences:  A028039 A028040 A028041 * A028043 A028044 A028045

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified August 8 21:55 EDT 2022. Contains 356016 sequences. (Running on oeis4.)