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!)
A138188 Expansion of (1-2x-2x^2-x^3)/(1+x+x^2-x^3-x^4-x^5). 2

%I

%S 1,-3,0,3,-5,0,5,-7,0,7,-9,0,9,-11,0,11,-13,0,13,-15,0,15,-17,0,17,

%T -19,0,19,-21,0,21,-23,0,23,-25,0,25,-27,0,27,-29,0,29,-31,0,31,-33,0,

%U 33,-35,0,35,-37,0,37,-39,0,39,-41,0,41

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

%C Partial sums of A138187. Partial sums are A138189.

%H <a href="/index/Rec#order_05">Index entries for linear recurrences with constant coefficients</a>, signature (-1,-1,1,1,1).

%K easy,sign

%O 0,2

%A _Paul Barry_, Mar 04 2008

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 10 22:16 EDT 2021. Contains 343780 sequences. (Running on oeis4.)