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 A055404 #11 Sep 29 2019 13:21:02 %S A055404 1,6,36,157,482,1203,2673,5139,9389,15930,25810,39855,59711,86346, %T A055404 122467,168957,229743,305153,400844,518154,662629,835490,1044410, %U A055404 1292216,1588236,1930057,2334622,2798143,3340038,3955063,4663169 %N A055404 Number of points in N^5 of norm <= n. %H A055404 Andrew Howroyd, <a href="/A055404/b055404.txt">Table of n, a(n) for n = 0..500</a> %F A055404 a(n) = [x^(n^2)] (1 + theta_3(x))^5/(32*(1 - x)), where theta_3() is the Jacobi theta function. - _Ilya Gutkovskiy_, Apr 15 2018 %Y A055404 Column k=5 of A302998. %K A055404 nonn %O A055404 0,2 %A A055404 _David W. Wilson_