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A025890 Expansion of 1/((1-x^5)*(1-x^8)*(1-x^12)). 6

%I #9 Dec 12 2022 08:22:31

%S 1,0,0,0,0,1,0,0,1,0,1,0,1,1,0,1,1,1,1,0,2,1,1,1,2,2,1,1,2,2,2,1,3,2,

%T 2,2,3,3,2,2,4,3,3,2,4,4,3,3,5,4,4,3,5,5,4,4,6,5,5,4,7,6,5,5,7,7,6,5,

%U 8,7,7,6,9,8,7,7,9,9,8,7

%N Expansion of 1/((1-x^5)*(1-x^8)*(1-x^12)).

%C a(n) is the number of partitions of n into parts 5, 8, and 12. - _Michel Marcus_, Dec 12 2022

%H G. C. Greubel, <a href="/A025890/b025890.txt">Table of n, a(n) for n = 0..5000</a>

%H <a href="/index/Rec#order_25">Index entries for linear recurrences with constant coefficients</a>, signature (0,0,0,0,1,0,0,1,0,0,0,1,-1,0,0,0,-1,0,0,-1,0,0,0,0,1).

%t CoefficientList[Series[1/((1-x^5)*(1-x^8)*(1-x^12)), {x,0,90}], x] (* _G. C. Greubel_, Dec 11 2022 *)

%o (Magma) R<x>:=PowerSeriesRing(Integers(), 90); Coefficients(R!( 1/((1-x^5)*(1-x^8)*(1-x^12)) )); // _G. C. Greubel_, Dec 11 2022

%o (SageMath)

%o def A025890_list(prec):

%o P.<x> = PowerSeriesRing(ZZ, prec)

%o return P( 1/((1-x^5)*(1-x^8)*(1-x^12)) ).list()

%o A025890_list(90) # _G. C. Greubel_, Dec 11 2022

%Y Cf. A025887, A025888, A025889.

%K nonn

%O 0,21

%A _N. J. A. Sloane_

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Last modified April 19 15:34 EDT 2024. Contains 371794 sequences. (Running on oeis4.)