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 A028604 #5 Jul 08 2025 18:39:43 %S A028604 1,0,8,0,24,16,32,96,24,208,144,224,480,288,640,768,792,1008,1360, %T A028604 1248,1616,2304,1632,1984,3680,2784,2032,5056,4416,4304,5568,5664, %U A028604 7192,8448,6384,7808,13328,8832,8992 %N A028604 Expansion of (theta_3(z)*theta_3(9z)+theta_2(z)*theta_2(9z))^4. %K A028604 nonn %O A028604 0,3 %A A028604 _N. J. A. Sloane_