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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.

A281616 Expansion of Sum_{p prime, i>=1} x^(p^i)/(1 - x^(p^i)) / Product_{p prime, j>=1} (1 - x^(p^j)).

Table of values

n a(n)
1 0
2 1
3 1
4 3
5 3
6 7
7 8
8 15
9 18
10 28
11 36
12 53
13 66
14 91
15 117
16 156
17 195
18 254
19 318
20 407
21 503
22 630
23 777
24 965
25 1176
26 1439
27 1750
28 2124
29 2559
30 3078
31 3692
32 4417
33 5257
34 6246
35 7405
36 8753
37 10314
38 12127
39 14233
40 16668
41 19464
42 22687
43 26406
44 30662
45 35539
46 41109
47 47495
48 54767
49 63044
50 72454
51 83167
52 95305
53 109054
54 124607
55 142209
56 162076
57 184464

List of values

[0, 1, 1, 3, 3, 7, 8, 15, 18, 28, 36, 53, 66, 91, 117, 156, 195, 254, 318, 407, 503, 630, 777, 965, 1176, 1439, 1750, 2124, 2559, 3078, 3692, 4417, 5257, 6246, 7405, 8753, 10314, 12127, 14233, 16668, 19464, 22687, 26406, 30662, 35539, 41109, 47495, 54767, 63044, 72454, 83167, 95305, 109054, 124607, 142209, 162076, 184464]