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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.

A213622 Expansion of phi(x) * psi(x) * phi(x^2) in powers of x where phi(), psi() are Ramanujan theta functions.

Table of values

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

List of values

[1, 3, 4, 7, 8, 4, 9, 8, 4, 16, 9, 8, 20, 8, 8, 11, 8, 12, 20, 20, 8, 15, 16, 12, 20, 16, 8, 24, 21, 8, 20, 8, 16, 28, 24, 8, 17, 32, 12, 36, 16, 8, 24, 16, 24, 19, 20, 20, 32, 16, 12, 28, 16, 20, 44, 27, 12, 36, 24, 16, 28, 24, 16, 28, 32, 12, 25, 32, 12, 48]

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