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%I #7 Mar 10 2018 23:09:03
%S 1,22,315,3740,40121,405042,3935095,37284280,347419941,3201202862,
%T 29273641475,266321046420,2414445954961,21837387317482,
%U 197190900709455,1778695458106160,16032377546389181,144437380023772902
%N Expansion of 1/((1-2x)(1-5x)(1-6x)(1-9x)).
%H <a href="/index/Rec#order_04">Index entries for linear recurrences with constant coefficients</a>, signature (22,-169,528,-540).
%F a(n) = -2*2^n/21 +125*5^n/12 -18*6^n/1 +243*9^n/28. _R. J. Mathar_, Jun 20 2013
%t CoefficientList[Series[1/((1-2x)(1-5x)(1-6x)(1-9x)),{x,0,20}],x] (* or *) LinearRecurrence[{22,-169,528,-540},{1,22,315,3740},20] (* _Harvey P. Dale_, Mar 10 2018 *)
%K nonn
%O 0,2
%A _N. J. A. Sloane_.
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