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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.

A224822 Expansion of phi(-q) * phi(-q^3)^2 in powers of q where phi() is a Ramanujan theta function.

Table of values

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

List of values

[1, -2, 0, -4, 10, 0, 4, -16, 0, -2, 8, 0, 12, -8, 0, -16, 26, 0, 0, -24, 0, -8, 8, 0, 20, -10, 0, -4, 32, 0, 8, -48, 0, -8, 16, 0, 10, -8, 0, -32, 40, 0, 8, -24, 0, 0, 16, 0, 28, -18, 0, -24, 40, 0, 4, -64, 0, -8, 8, 0, 32, -24, 0, -16, 58, 0, 16, -24, 0, -16]

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