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 A022058 #12 Oct 16 2018 12:00:36 %S A022058 1,1404,280854,19014840,581257404,9436118328,93086496360,638406025200, %T A022058 3387901252374,14765641285044,55108831380408,181434042582840, %U A022058 538265644820280,1464212332875816,3696677780664960,8759016189382896,19620550996489404,41872709357187696 %N A022058 Theta series of D_27 lattice. %D A022058 J. H. Conway and N. J. A. Sloane, "Sphere Packings, Lattices and Groups", Springer-Verlag, p. 118. %H A022058 Seiichi Manyama, <a href="/A022058/b022058.txt">Table of n, a(n) for n = 0..1000</a> %t A022058 terms = 15; f[q_] = LatticeData["D27", "ThetaSeriesFunction"][-I*Log[q]/Pi]; s = f[q] + O[q]^(2 terms); DeleteCases[CoefficientList[s, q], 0][[1 ;; terms]] (* _Jean-François Alcover_, Jul 06 2017 *) %K A022058 nonn %O A022058 0,2 %A A022058 _N. J. A. Sloane_ %E A022058 More terms from _Seiichi Manyama_, Oct 16 2018