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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.

A328730 Dirichlet g.f.: Product_{k>=2} (1 - k^(-s))^k.

Table of values

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

List of values

[1, -2, -3, -3, -5, 0, -7, 0, -6, 0, -11, 9, -13, 0, 0, 2, -17, 12, -19, 15, 0, 0, -23, 18, -15, 0, -1, 21, -29, 30, -31, 12, 0, 0, 0, 33, -37, 0, 0, 30, -41, 42, -43, 33, 30, 0, -47, 30, -28, 30, 0, 39, -53, 38, 0, 42, 0, 0, -59, 60, -61, 0, 42, 14, 0, 66, -67, 51, 0, 70]