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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.

A260943 Expansion of psi(-x^2) * chi(x^3) * f(x^6) in powers of x where psi(), chi(), f() are Ramanujan theta functions.

Table of values

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

List of values

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

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