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.

A370108 Array read by antidiagonals: T(n,k) is the number of length n necklaces using at most k colors in which the convex hull of a set of beads of any color A can be transformed by rotation into the convex hull of a set of beads of any other color B (n >= 1, k >= 1).

Table of values

n a(n)
1 0
2 0
3 0
4 0
5 1
6 0
7 0
8 3
9 0
10 0
11 0
12 6
13 2
14 2
15 0
16 0
17 10
18 8
19 6
20 0
21 0
22 0
23 15
24 20
25 18
26 0
27 2
28 0
29 0
30 21
31 40
32 50
33 0
34 10
35 0
36 0
37 0
38 28
39 70
40 120
41 24
42 28
43 0
44 4
45 0
46 0
47 36
48 112
49 252
50 144
51 60
52 0
53 12
54 0
55 0
56 0
57 45
58 168
59 476
60 504
61 230
62 0
63 54
64 8
65 4
66 0

List of values

[0, 0, 0, 0, 1, 0, 0, 3, 0, 0, 0, 6, 2, 2, 0, 0, 10, 8, 6, 0, 0, 0, 15, 20, 18, 0, 2, 0, 0, 21, 40, 50, 0, 10, 0, 0, 0, 28, 70, 120, 24, 28, 0, 4, 0, 0, 36, 112, 252, 144, 60, 0, 12, 0, 0, 0, 45, 168, 476, 504, 230, 0, 54, 8, 4, 0]