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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.

A258065 Expansion of (phi(-x^3) * f(-x^2))^2 in powers of x where phi(), f() are Ramanujan theta functions.

Table of values

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

List of values

[1, 0, -2, -4, -1, 8, 6, 4, -7, -8, -2, -4, 10, -8, -4, 0, 2, 16, -2, 16, 5, -8, 0, -12, -12, -16, -2, 12, -9, 0, 6, 8, 2, 16, 12, -20, 0, -8, 22, 0, 18, 8, -32, 0, 4, 8, -26, -28, -13, -8, 0, 12, -6, 24, 2, 20, 18, 0, 30, -16, -3, -8, -10, 20, 0, -16, 14, -16]

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