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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.

A208955 Expansion of phi(x) * phi(x^9) / chi(x^3)^2 in powers of x where phi(), chi() are Ramanujan theta functions.

Table of values

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

List of values

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

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