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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.

A258764 Expansion of chi(-x^2) * psi(-x^3)^2 in powers of x where psi(), chi() are Ramanujan theta functions.

Table of values

n a(n)
0 1
1 0
2 -1
3 -2
4 0
5 2
6 0
7 0
8 0
9 0
10 -1
11 0
12 2
13 2
14 -2
15 0
16 1
17 0
18 0
19 -2
20 0
21 0
22 -2
23 0
24 0
25 0
26 0
27 -2
28 2
29 2
30 0
31 0
32 1
33 0
34 0
35 -2
36 0
37 2
38 0
39 0
40 0
41 0
42 -1
43 -2
44 2
45 2
46 0
47 0
48 2
49 0
50 -2
51 0
52 0
53 0
54 -2
55 0
56 0
57 0
58 -2
59 -2
60 0
61 0
62 0
63 0
64 2
65 0
66 -1
67 0
68 0
69 4
70 0
71 0
72 0
73 0
74 0
75 -2
76 0
77 2
78 -2
79 0
80 3

List of values

[1, 0, -1, -2, 0, 2, 0, 0, 0, 0, -1, 0, 2, 2, -2, 0, 1, 0, 0, -2, 0, 0, -2, 0, 0, 0, 0, -2, 2, 2, 0, 0, 1, 0, 0, -2, 0, 2, 0, 0, 0, 0, -1, -2, 2, 2, 0, 0, 2, 0, -2, 0, 0, 0, -2, 0, 0, 0, -2, -2, 0, 0, 0, 0, 2, 0, -1, 0, 0, 4, 0, 0, 0, 0, 0, -2, 0, 2, -2, 0, 3]

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