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 A055414 #14 Sep 15 2019 13:49:02 %S A055414 1,17,1713,33809,306049,1733537,7259297,24499121,70554353,179773681, %T A055414 415055025,886597537,1773617697,3355533537,6058457297,10510672945, %U A055414 17588781393,28537047057,45040906785,69369596001,104503770913 %N A055414 Number of points in Z^8 of norm <= n. %C A055414 Numbers so far are all 1 mod 16. - _Ralf Stephan_, Jul 07 2003 %H A055414 Andrew Howroyd, <a href="/A055414/b055414.txt">Table of n, a(n) for n = 0..500</a> %F A055414 a(n) = [x^(n^2)] theta_3(x)^8/(1 - x), where theta_3() is the Jacobi theta function. - _Ilya Gutkovskiy_, Apr 14 2018 %Y A055414 Column k=8 of A302997. %K A055414 nonn %O A055414 0,2 %A A055414 _David W. Wilson_