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 A025815 Expansion of 1/((1-x^2)(1-x^6)(1-x^11)). 1

%I #10 Jul 30 2024 17:07:40

%S 1,0,1,0,1,0,2,0,2,0,2,1,3,1,3,1,3,2,4,2,4,2,5,3,6,3,6,3,7,4,8,4,8,5,

%T 9,6,10,6,10,7,11,8,12,8,13,9,14,10,15,10,16,11,17,12,18,13,19,14,20,

%U 15,21,16,22,17,23,18,25,19

%N Expansion of 1/((1-x^2)(1-x^6)(1-x^11)).

%H Harvey P. Dale, <a href="/A025815/b025815.txt">Table of n, a(n) for n = 0..1000</a>

%H <a href="/index/Rec#order_19">Index entries for linear recurrences with constant coefficients</a>, signature (0, 1, 0, 0, 0, 1, 0, -1, 0, 0, 1, 0, -1, 0, 0, 0, -1, 0, 1).

%t CoefficientList[Series[1/((1-x^2)(1-x^6)(1-x^11)),{x,0,80}],x] (* or *) LinearRecurrence[ {0,1,0,0,0,1,0,-1,0,0,1,0,-1,0,0,0,-1,0,1},{1,0,1,0,1,0,2,0,2,0,2,1,3,1,3,1,3,2,4},80] (* _Harvey P. Dale_, Jul 30 2024 *)

%K nonn

%O 0,7

%A _N. J. A. Sloane_.

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Last modified September 7 17:00 EDT 2024. Contains 375749 sequences. (Running on oeis4.)