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 A025776 Expansion of 1/((1-x)(1-x^5)(1-x^6)). 0

%I

%S 1,1,1,1,1,2,3,3,3,3,4,5,6,6,6,7,8,9,10,10,11,12,13,14,15,16,17,18,19,

%T 20,22,23,24,25,26,28,30,31,32,33,35,37,39,40,41,43,45,47,49,50,52,54,

%U 56,58,60,62,64,66,68,70

%N Expansion of 1/((1-x)(1-x^5)(1-x^6)).

%H <a href="/index/Rec#order_12">Index entries for linear recurrences with constant coefficients</a>, signature (1,0,0,0,1,0,-1,0,0,0,-1,1).

%F a(n)= +a(n-1) +a(n-5) -a(n-7) -a(n-11) +a(n-12). - _R. J. Mathar_, Aug 21 2014

%t CoefficientList[Series[1/((1-x)(1-x^5)(1-x^6)),{x,0,60}],x] (* _Harvey P. Dale_, Mar 06 2011 *)

%t LinearRecurrence[{1,0,0,0,1,0,-1,0,0,0,-1,1},{1,1,1,1,1,2,3,3,3,3,4,5},70] (* _Harvey P. Dale_, Feb 09 2015 *)

%K nonn,easy

%O 0,6

%A _N. J. A. Sloane_

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Last modified September 18 23:16 EDT 2021. Contains 347548 sequences. (Running on oeis4.)