cp's OEIS Frontend

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.

A276543 Triangle read by rows: T(n,k) = number of primitive (period n) n-bead bracelet structures using exactly k different colored beads.

Table of values

n a(n)
1 1
2 0
3 1
4 0
5 1
6 1
7 0
8 2
9 2
10 1
11 0
12 3
13 5
14 2
15 1
16 0
17 5
18 13
19 11
20 3
21 1
22 0
23 8
24 31
25 33
26 16
27 3
28 1
29 0
30 14
31 80
32 136
33 85
34 27
35 4
36 1
37 0
38 21
39 201
40 478
41 434
42 171
43 37
44 4
45 1
46 0
47 39
48 533
49 1849
50 2270
51 1249
52 338
53 54
54 5
55 1
56 0
57 62
58 1401
59 6845
60 11530
61 8389
62 3056
63 590
64 70
65 5
66 1

List of values

[1, 0, 1, 0, 1, 1, 0, 2, 2, 1, 0, 3, 5, 2, 1, 0, 5, 13, 11, 3, 1, 0, 8, 31, 33, 16, 3, 1, 0, 14, 80, 136, 85, 27, 4, 1, 0, 21, 201, 478, 434, 171, 37, 4, 1, 0, 39, 533, 1849, 2270, 1249, 338, 54, 5, 1, 0, 62, 1401, 6845, 11530, 8389, 3056, 590, 70, 5, 1]