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 A285311 #12 Apr 17 2017 09:55:11
%S A285311 1,0,0,-3,0,0,6,-7,0,-10,21,-11,15,-42,61,-36,70,-150,150,-124,278,
%T A285311 -441,375,-468,909,-1131,1018,-1581,2602,-2810,2947,-4819,6768,-6980,
%U A285311 8509,-13389,16788,-17609,23722,-34720,40337,-44863,63128,-85430,95887,-114037
%N A285311 Expansion of Product_{k>=0} 1/(1 + x^(4*k+3))^(4*k+3).
%H A285311 Seiichi Manyama, <a href="/A285311/b285311.txt">Table of n, a(n) for n = 0..10000</a>
%F A285311 a(n) = (-1)^n * A285131(n).
%Y A285311 Product_{k>=0} 1/(1 + x^(m*k+m-1))^(m*k+m-1): A284628 (m=2), A285310 (m=3), this sequence (m=4).
%Y A285311 Cf. A285131.
%K A285311 sign
%O A285311 0,4
%A A285311 _Seiichi Manyama_, Apr 16 2017