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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.

A263074 Expansion of phi(-x) / (chi(-x^3) * chi(-x^5)) in powers of x where phi(), chi() are Ramanujan theta functions.

Table of values

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

List of values

[1, -2, 0, 1, 0, 1, -1, 0, 1, 0, -1, -1, 0, 1, 0, 1, -3, 0, 2, 0, 1, -1, 0, 2, 0, 0, -3, 0, 1, 0, 2, -4, 0, 2, 0, 1, -3, 0, 3, 0, 1, -4, 0, 2, 0, 3, -6, 0, 4, 0, 4, -6, 0, 4, 0, 1, -7, 0, 4, 0, 3, -9, 0, 5, 0, 4, -8, 0, 6, 0, 3, -10, 0, 6, 0, 6, -13, 0, 8, 0, 5]

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