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!)
A025999 Expansion of 1/((1-2x)(1-5x)(1-8x)(1-11x)). 3
1, 26, 445, 6370, 82901, 1019746, 12105885, 140404290, 1603014501, 18104952866, 202945103725, 2262802497410, 25134485221301, 278430633932386, 3078357517755965, 33986947913921730, 374856803115095301 (list; graph; refs; listen; history; text; internal format)
OFFSET
0,2
LINKS
FORMULA
a(n) = -4*2^n/81 +125*5^n/54 -256*8^n/27 +1331*11^n/162. R. J. Mathar, Jun 20 2013
a(0)=1, a(1)=26, a(2)=445, a(3)=6370, a(n)=26*a(n-1)-231*a(n-2)+ 806*a(n-3)- 880*a(n-4). - Harvey P. Dale, May 24 2014
MATHEMATICA
CoefficientList[Series[1/((1-2x)(1-5x)(1-8x)(1-11x)), {x, 0, 20}], x] (* or *) LinearRecurrence[{26, -231, 806, -880}, {1, 26, 445, 6370}, 20] (* Harvey P. Dale, May 24 2014 *)
CROSSREFS
Sequence in context: A028045 A288714 A024438 * A028058 A331881 A024170
KEYWORD
nonn,easy
AUTHOR
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 March 28 12:59 EDT 2024. Contains 371254 sequences. (Running on oeis4.)