A029210 - OEIS

%I #10 Mar 15 2020 21:21:35

%S 1,0,1,0,1,1,1,1,1,2,2,2,3,2,4,3,4,4,5,5,6,6,7,7,9,8,10,10,11,12,13,

%T 13,15,15,17,17,20,19,22,22,24,25,27,27,30,31,33,34,37,37,41,41,44,45,

%U 49,49,53,54,57,59,63,63,68

%N Expansion of 1/((1-x^2)(1-x^5)(1-x^9)(1-x^12)).

%H Vincenzo Librandi, <a href="/A029210/b029210.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_28">Index entries for linear recurrences with constant coefficients</a>, signature (0,1,0,0,1,0,-1,0,1,0,-1,1,0,-2,0,1,-1,0,1,0,-1,0,1,0,0,1,0,-1).

%t CoefficientList[Series[1/((1 - x^2) (1 - x^5) (1 - x^9) (1 - x^12)), {x, 0, 70}], x] (* _Vincenzo Librandi_, Jun 02 2014 *)

%o (PARI) Vec(1/((1-x^2)*(1-x^5)*(1-x^9)*(1-x^12)) + O(x^80)) \\ _Jinyuan Wang_, Mar 15 2020

%K nonn,easy

%O 0,10

%A _N. J. A. Sloane_