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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.

A318256 a(n) = (denominator of B(n,x)) / (the squarefree kernel of n+1), where B(n,x) is the n-th Bernoulli polynomial.

Table of values

n a(n)
0 1
1 1
2 2
3 1
4 6
5 1
6 6
7 3
8 10
9 1
10 6
11 1
12 210
13 15
14 2
15 3
16 30
17 5
18 210
19 21
20 110
21 15
22 30
23 5
24 546
25 21
26 14
27 1
28 30
29 1
30 462
31 231
32 1190
33 105
34 6
35 1
36 51870
37 1365
38 70
39 21
40 2310
41 55
42 2310
43 105
44 322
45 105
46 210
47 35
48 6630
49 663
50 286
51 33
52 330
53 55
54 798
55 57
56 290
57 15
58 30
59 1
60 930930
61 15015

List of values

[1, 1, 2, 1, 6, 1, 6, 3, 10, 1, 6, 1, 210, 15, 2, 3, 30, 5, 210, 21, 110, 15, 30, 5, 546, 21, 14, 1, 30, 1, 462, 231, 1190, 105, 6, 1, 51870, 1365, 70, 21, 2310, 55, 2310, 105, 322, 105, 210, 35, 6630, 663, 286, 33, 330, 55, 798, 57, 290, 15, 30, 1, 930930, 15015]