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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.

A260944 Expansion of phi(-x^4) * psi(-x^6) / chi(-x^3) in powers of q where phi(), psi(), chi() are Ramanujan theta functions.

Table of values

n a(n)
0 1
1 0
2 0
3 1
4 -2
5 0
6 0
7 -2
8 0
9 1
10 0
11 0
12 1
13 -2
14 0
15 1
16 0
17 0
18 1
19 0
20 0
21 1
22 -2
23 0
24 1
25 0
26 0
27 1
28 0
29 0
30 2
31 0
32 0
33 1
34 -2
35 0
36 0
37 0
38 0
39 0
40 -2
41 0
42 2
43 -2
44 0
45 1
46 0
47 0
48 0
49 -4
50 0
51 0
52 0
53 0
54 1
55 0
56 0
57 1
58 -2
59 0
60 1
61 0
62 0
63 2
64 0
65 0
66 0
67 -2
68 0
69 2
70 -2
71 0
72 0
73 0
74 0
75 1
76 0
77 0
78 1
79 0
80 0
81 0
82 0

List of values

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

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