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Expansion of 1/((1-x)(1-x^5)(1-x^6)(1-x^7)).
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%I #11 May 20 2017 07:14:43

%S 1,1,1,1,1,2,3,4,4,4,5,6,8,9,10,11,12,14,16,18,20,22,24,26,29,32,35,

%T 38,41,44,48,52,56,60,64,69,74,79,84,89,95,101,108,114,120,127,134,

%U 142,150,158,166,174,183,192,202

%N Expansion of 1/((1-x)(1-x^5)(1-x^6)(1-x^7)).

%C Number of partitions of n into parts 1, 5, 6 and 7. - _Ilya Gutkovskiy_, May 20 2017

%H Vincenzo Librandi, <a href="/A029085/b029085.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 (1,0,0,0,1,0,0,-1,0,0,-1,0,0,1,0,0,0,1,-1).

%t CoefficientList[Series[1/((1 - x) (1 - x^5) (1 - x^6) (1 - x^7)), {x, 0, 80}], x] (* _Vincenzo Librandi_, Sep 25 2013 *)

%K nonn,easy

%O 0,6

%A _N. J. A. Sloane_.