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%I #10 Apr 22 2022 17:04:24
%S 1,1,1,1,1,1,2,3,3,4,4,4,5,6,7,8,9,9,11,12,13,15,16,17,19,21,22,25,27,
%T 28,31,33,35,38,41,43,47,50,52,56,59,62,67,71,74,79,83,86,92,97,101,
%U 107,112,116,123,129,134,141
%N Expansion of 1/((1-x)(1-x^6)(1-x^7)(1-x^9)).
%H <a href="/index/Rec#order_23">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,0,0,0,1,0,-1,1,-1,0,0,-1,1,-1,0,1,0,0,0,0,1,-1).
%t CoefficientList[Series[1/((1-x)(1-x^6)(1-x^7)(1-x^9)), {x, 0, 70}], x] (* _Jinyuan Wang_, Mar 18 2020 *)
%t LinearRecurrence[{1,0,0,0,0,1,0,-1,1,-1,0,0,-1,1,-1,0,1,0,0,0,0,1,-1},{1,1,1,1,1,1,2,3,3,4,4,4,5,6,7,8,9,9,11,12,13,15,16},80] (* _Harvey P. Dale_, Apr 22 2022 *)
%K nonn,easy
%O 0,7
%A _N. J. A. Sloane_