This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.
%I A035300 #12 Aug 09 2017 02:46:04
%S A035300 1,2,4,7,12,18,28,40,58,80,111,149,201,264,348,450,583,744,950,1199,
%T A035300 1514,1893,2366,2935,3638,4480,5513,6746,8247,10035,12196,14763,17850,
%U A035300 21504,25875,31038,37184,44422
%N A035300 Expansion of Sum_{n>=0} (q^n / Product_{k=1..n+4} (1 - q^k)).
%F A035300 a(n) = A000041(n+4) - round((n+7)^2/12). - _Vladeta Jovovic_, Jun 18 2003
%p A035300 ZL :=[S, {S = Set(Cycle(Z),3 < card)}, unlabelled]: seq(combstruct[count](ZL, size=n), n=4..41); # _Zerinvary Lajos_, Mar 25 2008
%p A035300 B:=[S,{S = Set(Sequence(Z,1 <= card),card >=4)},unlabelled]: seq(combstruct[count](B, size=n), n=4..41); # _Zerinvary Lajos_, Mar 21 2009
%Y A035300 Cf. A004250, A035301.
%K A035300 nonn
%O A035300 0,2
%A A035300 _N. J. A. Sloane_