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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.

A246953 Expansion of phi(-x) * psi(x^2)^2 in powers of x where phi(), psi() are Ramanujan theta functions.

Table of values

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

List of values

[1, -2, 2, -4, 3, -2, 6, -4, 4, -6, 4, -4, 7, -8, 2, -8, 8, -4, 10, -4, 4, -10, 10, -8, 9, -4, 6, -12, 8, -6, 10, -12, 4, -14, 8, -4, 16, -10, 8, -8, 9, -10, 12, -12, 8, -12, 12, -4, 20, -10, 6, -20, 8, -6, 10, -12, 8, -20, 18, -8, 11, -12, 12, -16, 8, -6, 20]

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