login

Reminder: The OEIS is hiring a new managing editor, and the application deadline is January 26.

Expansion of 1/((1-x^2)(1-x^5)(1-x^9)(1-x^10)).
1

%I #12 Mar 15 2020 21:19:02

%S 1,0,1,0,1,1,1,1,1,2,3,2,3,2,4,4,4,4,5,6,8,6,8,7,10,10,10,11,12,14,16,

%T 14,17,16,20,20,21,22,24,26,29,27,31,30,35,36,37,39,41,44,48,46,51,50,

%U 57,58,60,62,65,69,74,72

%N Expansion of 1/((1-x^2)(1-x^5)(1-x^9)(1-x^10)).

%H Vincenzo Librandi, <a href="/A029208/b029208.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_26">Index entries for linear recurrences with constant coefficients</a>, signature (0,1,0,0,1,0,-1,0,1,1,-1,-1,0,-1,-1,1,1,0,-1,0,1,0,0,1,0,-1).

%t CoefficientList[Series[1/((1-x^2)(1-x^5)(1-x^9)(1-x^10)),{x,0,70}],x] (* _Harvey P. Dale_, Jul 23 2013 *)

%o (PARI) Vec(1/((1-x^2)*(1-x^5)*(1-x^9)*(1-x^10)) + O(x^80)) \\ _Jinyuan Wang_, Mar 15 2020

%K nonn,easy

%O 0,10

%A _N. J. A. Sloane_