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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.

A190615 Expansion of f(x^2) * f(x^3) / (chi(x) * chi(x^6)) in powers of x where f(), chi() are Ramanujan theta functions.

Table of values

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

List of values

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

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