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!)
A147598 Expansion of 1/((x^5-x^4-x^3+x^2-1)*(x^5-x^3+x^2+x-1)). 0

%I

%S 1,1,3,2,4,3,6,9,14,23,29,45,57,88,123,184,267,382,556,787,1149,1643,

%T 2392,3444,4978,7184,10348,14956,21550,31152,44924,64881,93611,135101,

%U 195000,281382,406201,586164,846121,1221064,1762399,2543555,3671003

%N Expansion of 1/((x^5-x^4-x^3+x^2-1)*(x^5-x^3+x^2+x-1)).

%F G.f.:1/((x^5-x^4-x^3+x^2-1)*(x^5-x^3+x^2+x-1)) [Maksym Voznyy (voznyy(AT)mail.ru), Jul 27 2009]

%t f[x_] = x^5 - x^4 - x^3 + x^2 - 1;

%t g[x] = ExpandAll[ -f[x]*x^5*f[1/x]];

%t Table[SeriesCoefficient[Series[1/g[x], {x, 0, 50}], n], {n, 0, 50}]

%K nonn,easy,less

%O 0,3

%A _Roger L. Bagula_, Nov 08 2008

%E Better name (using g.f.) from _Joerg Arndt_, Apr 06 2018

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 January 29 01:19 EST 2022. Contains 350670 sequences. (Running on oeis4.)