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%I #10 Jun 13 2015 00:49:05
%S 1,22,320,3920,44016,471072,4904320,50237440,509670656,5141007872,
%T 51677982720,518395637760,5193684791296,51995352604672,
%U 520305091051520,5205162447994880,52064302294695936,520719124195049472
%N Expansion of 1/((1-2x)(1-4x)(1-6x)(1-10x)).
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (22, -164, 488, -480).
%F a(n) = -2^n/8 +8*4^n/3 -27*6^n/4 +125*10^n/24. - _R. J. Mathar_, Jun 20 2013
%t CoefficientList[Series[1/((1-2x)(1-4x)(1-6x)(1-10x)),{x,0,30}],x] (* or *) LinearRecurrence[{22,-164,488,-480},{1,22,320,3920},30] (* _Harvey P. Dale_, Dec 30 2014 *)
%K nonn,easy
%O 0,2
%A _N. J. A. Sloane_.
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