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%I #13 Aug 30 2018 23:55:30
%S 1,16,165,1400,10661,75936,517525,3421000,22124421,140796656,
%T 885205685,5513890200,34098207781,209668346176,1283419890645,
%U 7827611393000,47601257612741,288785879108496,1748608103548405
%N Expansion of 1/((1-2x)(1-3x)(1-5x)(1-6x)).
%H <a href="/index/Rec">Index entries for linear recurrences with constant coefficients</a>, signature (16,-91,216,-180).
%F From _Vincenzo Librandi_, Mar 19 2011: (Start)
%F a(n) = 16*a(n-1) - 91*a(n-2) + 216*a(n-3) - 180*a(n-4), n >= 4.
%F a(n) = 11*a(n-1) - 30*a(n-2) + 3^(n+1) - 2^(n+1), n >= 2. (End)
%F a(n) = 3*6^(n+1) - 5^(n+3)/6 + 3^(n+2)/2 - 2^(n+1)/3. - _R. J. Mathar_, Mar 19 2011
%K nonn
%O 0,2
%A _N. J. A. Sloane_