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

 

Logo

Year-end appeal: Please make a donation to the OEIS Foundation to support ongoing development and maintenance of the OEIS. We are now in our 56th year, we are closing in on 350,000 sequences, and we’ve crossed 9,700 citations (which often say “discovered thanks to the OEIS”).

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A004058 Expansion of (1-x)/( (1+x)*(1-2*x)*(1-3*x)*(1-4*x)*(1-5*x)). 2
1, 12, 99, 686, 4305, 25368, 143263, 785202, 4211229, 22226204, 115899147, 598832598, 3072304873, 15676477920, 79649367351, 403336249274, 2037103422837, 10267399442916, 51665107485475 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,2

LINKS

Vincenzo Librandi, Table of n, a(n) for n = 0..1000

Index entries for linear recurrences with constant coefficients, signature (13,-57,83,34,-120).

FORMULA

a(n) = (1/180)*(2500*5^n - 3456*4^n + 1215*3^n - 80*2^n + (-1)^n).

PROG

(MAGMA) [(1/180) *(2500*5^n - 3456*4^n + 1215*3^n - 80*2^n + (-1)^n): n in [0..30]]; // Vincenzo Librandi, Oct 08 2011

CROSSREFS

First differences of A099111.

Sequence in context: A282285 A090230 A133652 * A052178 A322721 A123902

Adjacent sequences:  A004055 A004056 A004057 * A004059 A004060 A004061

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 November 30 05:12 EST 2021. Contains 349419 sequences. (Running on oeis4.)