login
This site is supported by donations to The OEIS Foundation.

 

Logo

Annual Appeal: Today, Nov 11 2014, is the 4th anniversary of the launch of the new OEIS web site. 70,000 sequences have been added in these four years, all edited by volunteers. Please make a donation (tax deductible in the US) to help keep the OEIS running.

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A147593 Expansion of 1/(1 - x + x^3 - 3*x^4 + x^5 - x^7 + x^8). 0
1, 1, 1, 0, 2, 3, 5, 3, 6, 8, 16, 16, 24, 28, 50, 61, 91, 109, 170, 220, 327, 415, 607, 800, 1164, 1536, 2192, 2928, 4172, 5616, 7921, 10705, 15049, 20460, 28638, 39027, 54453, 74451, 103662, 141996, 197288, 270704, 375632, 516096, 715258, 983661, 1362091 (list; graph; refs; listen; history; text; internal format)
OFFSET

0,5

LINKS

Table of n, a(n) for n=0..46.

Index to sequences with linear recurrences with constant coefficients, signature (1,0,-1,3,-1,0,1,-1).

FORMULA

G.f.: 1/((x^4-x^3-1)*(x^4+x-1)). [Colin Barker, Nov 04 2012]

MATHEMATICA

f[x_] = x^4 - x^3 - 1; g[x] = ExpandAll[ -f[x]*x^4*f[1/x]]; a = Table[SeriesCoefficient[Series[1/g[x], {x, 0, 50}], n], {n, 0, 50}]

CROSSREFS

Sequence in context: A185191 A103781 A095244 * A108396 A239476 A117367

Adjacent sequences:  A147590 A147591 A147592 * A147594 A147595 A147596

KEYWORD

nonn,easy

AUTHOR

Roger L. Bagula, Nov 08 2008

EXTENSIONS

Edited by Joerg Arndt and Colin Barker, Nov 04 2012.

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Transforms | Superseeker | Recent | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.

Content is available under The OEIS End-User License Agreement .

Last modified November 24 09:23 EST 2014. Contains 249882 sequences.