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 A357380 #5 Sep 26 2022 20:17:37 %S A357380 1,-2,0,1,1,-1,0,1,-2,1,0,1,-2,0,2,-1,0,0,1,-2,0,1,1,0,-2,1,0,0,0,1, %T A357380 -2,0,1,1,-1,0,1,-1,-1,0,2,-1,0,0,0,0,0,1,-2,0,1,1,-1,0,1,-2,1,0,1,-2, %U A357380 1,0,-1,1,1,0,-2,1,0,0,0,0,0,0,0,0,1,-2,0,1,1,-1,0,1,-2,1,0,1,-2,0,2,-1,0,0,1,-2,0,2,-1,0,-1 %N A357380 Expansion of Product_{k>=1} (1 - x^Fibonacci(k)). %C A357380 Convolution inverse of A007000. %C A357380 First differences of A093996. %t A357380 nmax = 100; CoefficientList[Series[Product[(1 - x^Fibonacci[k]), {k, 1, 21}], {x, 0, nmax}], x] %Y A357380 Cf. A000045, A007000, A093996, A357381. %K A357380 sign %O A357380 0,2 %A A357380 _Ilya Gutkovskiy_, Sep 26 2022