A029114 - OEIS

%I #8 Nov 24 2022 16:42:46

%S 1,1,1,1,1,1,2,2,2,3,3,4,5,5,5,6,6,7,9,9,10,11,12,13,15,15,16,18,19,

%T 21,23,24,25,28,29,31,34,35,37,40,42,44,48,49,52,56,58,61,65,67,70,75,

%U 77,81,86,89,93,98,101,105,111

%N Expansion of 1/((1-x)(1-x^6)(1-x^9)(1-x^11)).

%H <a href="/index/Rec#order_27">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,0,0,0,1,-1,0,1,-1,1,-1,0,0,-1,1,-1,1,0,-1,1,0,0,0,0,1,-1).

%t CoefficientList[Series[1/((1-x)(1-x^6)(1-x^9)(1-x^11)), {x, 0, 70}], x] (* _Jinyuan Wang_, Mar 18 2020 *)

%t LinearRecurrence[{1,0,0,0,0,1,-1,0,1,-1,1,-1,0,0,-1,1,-1,1,0,-1,1,0,0,0,0,1,-1},{1,1,1,1,1,1,2,2,2,3,3,4,5,5,5,6,6,7,9,9,10,11,12,13,15,15,16},80] (* _Harvey P. Dale_, Nov 24 2022 *)

%K nonn,easy

%O 0,7

%A _N. J. A. Sloane_