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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.

A366571 a(n) = denominator(Bernoulli(n, x)) / denominator(Bernoulli'(n, x)).

Table of values

n a(n)
0 1
1 2
2 6
3 1
4 30
5 1
6 42
7 1
8 10
9 1
10 66
11 1
12 2730
13 1
14 2
15 3
16 170
17 1
18 798
19 1
20 110
21 3
22 46
23 1
24 546
25 1
26 2
27 1
28 870
29 1
30 14322
31 1
32 170
33 3
34 2
35 1
36 1919190
37 1
38 2
39 3
40 4510
41 1
42 1806
43 1
44 46
45 15
46 94
47 1
48 1326
49 1
50 22
51 3
52 530
53 1
54 798
55 1
56 290
57 3
58 118
59 1
60 56786730
61 1
62 2
63 3
64 34
65 5
66 64722

List of values

[1, 2, 6, 1, 30, 1, 42, 1, 10, 1, 66, 1, 2730, 1, 2, 3, 170, 1, 798, 1, 110, 3, 46, 1, 546, 1, 2, 1, 870, 1, 14322, 1, 170, 3, 2, 1, 1919190, 1, 2, 3, 4510, 1, 1806, 1, 46, 15, 94, 1, 1326, 1, 22, 3, 530, 1, 798, 1, 290, 3, 118, 1, 56786730, 1, 2, 3, 34, 5, 64722]