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 A303903 #6 May 02 2018 22:37:14
%S A303903 1,0,0,1,-1,1,0,-1,2,-1,0,1,-2,2,0,-1,2,-2,1,0,-2,3,-1,0,2,-3,2,0,-2,
%T A303903 3,-2,0,1,-3,3,0,-1,3,-3,2,0,-3,4,-2,0,2,-4,3,0,-2,3,-3,1,0,-3,4,-1,0,
%U A303903 3,-4,3,0,-3,5,-3,0,2,-5,4,0,-2,4,-4,2,0,-4,5,-2,0,3,-5,3,0,-3,4,-3
%N A303903 Expansion of (1 - x^2)*Product_{k>=3} (1 + x^Fibonacci(k)).
%C A303903 First differences of A000119.
%H A303903 Ilya Gutkovskiy, <a href="/A303903/a303903.jpg">Scatter plot of a(n) up to n=50000</a>
%H A303903 <a href="/index/Par#part">Index entries for sequences related to partitions</a>
%t A303903 nmax = 85; CoefficientList[Series[(1 - x^2) Product[1 + x^Fibonacci[k], {k, 3, 21}], {x, 0, nmax}], x]
%Y A303903 Cf. A000045, A000119, A003107, A087897, A238999, A239002.
%K A303903 sign
%O A303903 0,9
%A A303903 _Ilya Gutkovskiy_, May 02 2018