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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.

A227395 Expansion of q^2 * phi(-q) * psi(q^16) in powers of q where phi(), psi() are Ramanujan theta functions.

Table of values

n a(n)
2 1
3 -2
4 0
5 0
6 2
7 0
8 0
9 0
10 0
11 -2
12 0
13 0
14 0
15 0
16 0
17 0
18 3
19 -2
20 0
21 0
22 2
23 0
24 0
25 0
26 0
27 -4
28 0
29 0
30 0
31 0
32 0
33 0
34 2
35 0
36 0
37 0
38 2
39 0
40 0
41 0
42 0
43 -2
44 0
45 0
46 0
47 0
48 0
49 0
50 1
51 -4
52 0
53 0
54 4
55 0
56 0
57 0
58 0
59 -2
60 0
61 0
62 0
63 0
64 0
65 0
66 4
67 -2
68 0
69 0
70 0
71 0
72 0
73 0
74 0
75 -2
76 0
77 0
78 0
79 0
80 0
81 0
82 2
83 -2
84 0

List of values

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

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