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 A284586 #12 Mar 29 2017 11:29:22
%S A284586 1,0,0,0,0,-1,0,0,0,0,0,-1,0,0,0,0,1,-1,0,0,0,0,1,-1,0,0,0,0,2,-1,0,0,
%T A284586 0,-1,2,-1,0,0,0,-1,3,-1,0,0,0,-2,3,-1,0,0,0,-3,4,-1,0,0,1,-4,4,-1,0,
%U A284586 0,1,-5,5,-1,0,0,2,-7,5,-1,0,0,3,-8,6,-1,0,0,5
%N A284586 Expansion of Product_{k>=0} (1 - x^(6*k+5)) in powers of x.
%F A284586 a(n) = -(1/n)*Sum_{k=1..n} A284104(k)*a(n-k), a(0) = 1.
%t A284586 CoefficientList[Series[Product[1 - x^(6*k+5), {k, 0, 80}], {x, 0, 80}], x] (* _Indranil Ghosh_, Mar 29 2017 *)
%Y A284586 Cf. Product_{k>=0} (1 - x^(6*k+m)): A284585 (m=1), this sequence (m=5).
%Y A284586 Cf. A281244.
%K A284586 sign
%O A284586 0,29
%A A284586 _Seiichi Manyama_, Mar 29 2017