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 A320248 #18 Feb 16 2025 08:33:56
%S A320248 1,2,2,6,8,10,22,26,36,60,78,106,152,202,258,370,478,602,828,1042,
%T A320248 1332,1758,2198,2758,3572,4446,5512,7002,8614,10616,13292,16260,19792,
%U A320248 24496,29724,35976,44062,52992,63780,77296,92518,110532,132848,158036,187674,224066,264960
%N A320248 Expansion of Product_{k=1..24} theta_3(q^k), where theta_3() is the Jacobi theta function.
%C A320248 Also the number of integer solutions (a_1, a_2, ... , a_24) to the equation a_1^2 + 2*a_2^2 + ... + 24*a_24^2 = n.
%C A320248 a(24045) = 45676735553670596752038069309732400 and a(24046) = 45676724028345437854371347712212432. So a(24045) > a(24046).
%H A320248 Seiichi Manyama, <a href="/A320248/b320248.txt">Table of n, a(n) for n = 0..10000</a>
%H A320248 Eric Weisstein's World of Mathematics, <a href="https://mathworld.wolfram.com/JacobiThetaFunctions.html">Jacobi Theta Functions</a>
%Y A320248 Product_{k=1..m} theta_3(q^k): A000122 (m=1), A033715 (m=2), A029594 (m=3), A320139 (m=4), A320231 (m=5), A320232 (m=6), A320233 (m=7), A320234 (m=8), A320241 (m=9), A320242 (m=10), A320246 (m=12), A320247 (m=16), this sequence (m=24).
%Y A320248 Cf. A320067.
%K A320248 nonn
%O A320248 0,2
%A A320248 _Seiichi Manyama_, Oct 08 2018