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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.

A260945 Expansion of (2*b(q^4) - b(q) - b(q^2)) / 3 in powers of q where b() is a cubic AGM theta function.

Table of values

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

List of values

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

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