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 A303395 #7 Apr 23 2018 18:52:48
%S A303395 1,-2,-14,-140,-586,-5628,-44492,-187864,-482906,-17262828,-37958116,
%T A303395 65242328,-2453533124,21817485480,113877127592,-2570293967536,
%U A303395 28064994368262,169252831757492,-188223954450804,12624245609040632,54083158292451540,-158891267358816264
%N A303395 Expansion of Product_{n>=1} ((1 - (8*x)^n)/(1 + (8*x)^n))^(1/8).
%o A303395 (PARI) N=66; x='x+O('x^N); Vec(prod(k=1, N, ((1-(8*x)^k)/(1+(8*x)^k))^(1/8)))
%Y A303395 Expansion of Product_{n>=1} ((1 + (2^b*x)^n)/(1 - (2^b)*x^n))^(1/(2^b)): A002448 (b=0), A303306 (b=1), A303394 (b=2), this sequence (b=3).
%Y A303395 Cf. A303381.
%K A303395 sign
%O A303395 0,2
%A A303395 _Seiichi Manyama_, Apr 23 2018