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 A343776 #10 Apr 29 2021 10:20:29 %S A343776 1,-1,-1,0,-1,2,1,1,-1,-1,2,0,-1,0,-2,-3,-1,2,0,1,5,-2,1,-2,2,-1,0,2, %T A343776 0,-1,-1,3,-4,4,0,-4,-5,-2,-3,7,2,1,-6,-2,4,-2,2,1,7,-5,11,6,0,-1,1, %U A343776 -12,-11,5,-3,-2,-8,9,8,3,1,2,-5,-4,5,-11,-6,0,7,7,4,-17,3,-5,8,9,-4,-1,-10,5,-6,24,-5,10,0 %N A343776 G.f.: Product_{k>=1} eta(x^(k^2)). %H A343776 Seiichi Manyama, <a href="/A343776/b343776.txt">Table of n, a(n) for n = 0..10000</a> %o A343776 (PARI) my(N=99, x='x+O('x^N)); Vec(prod(k=1, sqrt(N), eta(x^(k^2)))) %Y A343776 Convolution inverse of A004101. %Y A343776 Cf. A010815, A280451, A288098. %K A343776 sign %O A343776 0,6 %A A343776 _Seiichi Manyama_, Apr 29 2021