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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.

A308297 Expansion of Sum_{k>=1} mu(k)*log((theta_3(x^k) + 1)/2)/k, where theta_3() is the Jacobi theta function.

Table of values

n a(n)
1 1
2 -1
3 0
4 1
5 -1
6 1
7 -1
8 0
9 1
10 -1
11 2
12 -3
13 1
14 1
15 -2
16 5
17 -6
18 4
19 -2
20 -3
21 10
22 -15
23 15
24 -9
25 -1
26 17
27 -34
28 43
29 -39
30 17
31 25
32 -78
33 117
34 -127
35 93
36 3
37 -147
38 298
39 -394
40 369
41 -168
42 -211
43 680
44 -1092
45 1251
46 -939
47 39
48 1336
49 -2827
50 3855
51 -3715
52 1857
53 1777
54 -6529
55 10922
56 -12789
57 9929

List of values

[1, -1, 0, 1, -1, 1, -1, 0, 1, -1, 2, -3, 1, 1, -2, 5, -6, 4, -2, -3, 10, -15, 15, -9, -1, 17, -34, 43, -39, 17, 25, -78, 117, -127, 93, 3, -147, 298, -394, 369, -168, -211, 680, -1092, 1251, -939, 39, 1336, -2827, 3855, -3715, 1857, 1777, -6529, 10922, -12789, 9929]