login
The OEIS Foundation is supported by donations from users of the OEIS and by a grant from the Simons Foundation.

 

Logo


Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A016249 Expansion of 1/((1-x)*(1-7*x)*(1-8*x)). 1
1, 16, 185, 1880, 17841, 162336, 1435945, 12448360, 106312481, 897579056, 7510186905, 62388376440, 515255179921, 4235078618176, 34671889197065, 282913935338120, 2302083235036161, 18688068146607696, 151404361037090425, 1224533599346325400, 9889359772117817201 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Table of n, a(n) for n=0..20.

FORMULA

a(0)=1, a(1)=16, a(n) = 15*a(n-1) - 56*a(n-2) + 1. - Vincenzo Librandi, Feb 10 2011

MATHEMATICA

Table[(3*2^(3*n + 4) - 7^(n + 2) + 1)/42, {n, 40}] (* or *) CoefficientList[Series[1/((1 - z) (1 - 7*z) (1 - 8*z)), {z, 0, 40}], z] (* Vladimir Joseph Stephan Orlovsky, Jul 21 2011 *)

PROG

(PARI) Vec(1/((1-x)*(1-7*x)*(1-8*x))+O(x^99)) \\ Charles R Greathouse IV, Sep 26 2012

CROSSREFS

Cf. A016218, A016228, A016241.

Sequence in context: A288720 A125428 A203391 * A021049 A067308 A016244

Adjacent sequences:  A016246 A016247 A016248 * A016250 A016251 A016252

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

License Agreements, Terms of Use, Privacy Policy. .

Last modified May 9 07:36 EDT 2021. Contains 343692 sequences. (Running on oeis4.)