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 A306935 #8 Jan 14 2024 08:08:45
%S A306935 1,0,0,56,128,0,0,576,756,0,0,1512,2072,0,0,4032,4158
%N A306935 Coefficients of q-expansion of Eisenstein series G_{7/2}(tau) multiplied by -252.
%H A306935 D. Zagier, <a href="https://people.mpim-bonn.mpg.de/zagier/files/tex/UtrechtLectures/UtBook.pdf">Modular Forms of One Variable</a>, Notes based on a course given in Utrecht, 1991. See page 50.
%Y A306935 Cf. A259825, A306934-A306937.
%K A306935 nonn,more
%O A306935 0,4
%A A306935 _N. J. A. Sloane_, Mar 16 2019