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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.

A279947 Expansion of f(x^2, x^2) * f(-x, -x^5) in powers of x where f(, ) is Ramanujan's general theta function.

Table of values

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

List of values

[1, -1, 2, -2, 0, -1, 0, -2, 3, -2, 2, 0, 0, -2, 0, 0, 3, 0, 4, -2, 0, -1, 0, -4, 2, 0, 2, 0, 0, -2, 0, 0, 2, -3, 2, -2, 0, -2, 0, -2, 3, -2, 2, 0, 0, 0, 0, 0, 4, 0, 2, -4, 0, -2, 0, -2, 1, 0, 6, 0, 0, 0, 0, 0, 2, -3, 2, -2, 0, 0, 0, -2, 4, -4, 2, 0, 0, -2, 0]

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