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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.

A327122 Expansion of Sum_{k>=1} sigma(k) * x^k / (1 + x^(2*k)), where sigma = A000203.

Table of values

n a(n)
1 1
2 3
3 3
4 7
5 7
6 9
7 7
8 15
9 10
10 21
11 11
12 21
13 15
14 21
15 21
16 31
17 19
18 30
19 19
20 49
21 21
22 33
23 23
24 45
25 38
26 45
27 30
28 49
29 31
30 63
31 31
32 63
33 33
34 57
35 49
36 70
37 39
38 57
39 45
40 105
41 43
42 63
43 43
44 77
45 70
46 69
47 47
48 93
49 50
50 114
51 57
52 105
53 55
54 90
55 77
56 105
57 57
58 93
59 59
60 147
61 63
62 93
63 70
64 127
65 105

List of values

[1, 3, 3, 7, 7, 9, 7, 15, 10, 21, 11, 21, 15, 21, 21, 31, 19, 30, 19, 49, 21, 33, 23, 45, 38, 45, 30, 49, 31, 63, 31, 63, 33, 57, 49, 70, 39, 57, 45, 105, 43, 63, 43, 77, 70, 69, 47, 93, 50, 114, 57, 105, 55, 90, 77, 105, 57, 93, 59, 147, 63, 93, 70, 127, 105]

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