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 A022085 #14 Jul 16 2021 01:33:01 %S A022085 1,64,1984,39680,575424,6448000,58115328,433131008,7019874240, %T A022085 14709082432,206518750336,285848172800,3185272407296,3515371815296, %U A022085 32146948928000,30156949879296,238103408854976,197101549419648,1393386325958336,1045365667116800,6768246939487360 %N A022085 Theta series of D*_32 lattice. %D A022085 J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 120. %H A022085 Andy Huchala, <a href="/A022085/b022085.txt">Table of n, a(n) for n = 0..20000</a> %e A022085 G.f. = 1 + 64*q^2 + 1984*q^4 + ... %o A022085 (Sage) %o A022085 L = [1, 64, 1984, 39680, 575424] %o A022085 M = ModularForms(Gamma0(2),16) %o A022085 bases = [_.q_expansion(30) for _ in M.integral_basis()] %o A022085 f = sum(x*y for (x,y) in zip(bases,L)); list(f) # _Andy Huchala_, Jul 15 2021 %K A022085 nonn %O A022085 0,2 %A A022085 _N. J. A. Sloane_ %E A022085 More terms from _Andy Huchala_, Jul 15 2021