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.

A369524 Array read by antidiagonals: T(n,k) is the number of length n necklaces using at most k colors with black beads always occurring in runs of even length.

Table of values

n a(n)
1 0
2 1
3 1
4 2
5 2
6 0
7 3
8 4
9 2
10 1
11 4
12 7
13 6
14 3
15 0
16 5
17 11
18 14
19 11
20 3
21 1
22 6
23 16
24 28
25 34
26 18
27 5
28 0
29 7
30 22
31 50
32 87
33 81
34 38
35 5
36 1
37 8
38 29
39 82
40 191
41 276
42 227
43 70
44 8
45 0
46 9
47 37
48 126
49 373
50 759
51 983
52 615
53 151
54 10
55 1
56 10
57 46
58 184
59 666
60 1782
61 3301
62 3500
63 1789
64 314
65 15
66 0
67 11
68 56
69 258
70 1109
71 3717
72 9180
73 14545
74 13007
75 5206
76 684
77 19
78 1

List of values

[0, 1, 1, 2, 2, 0, 3, 4, 2, 1, 4, 7, 6, 3, 0, 5, 11, 14, 11, 3, 1, 6, 16, 28, 34, 18, 5, 0, 7, 22, 50, 87, 81, 38, 5, 1, 8, 29, 82, 191, 276, 227, 70, 8, 0, 9, 37, 126, 373, 759, 983, 615, 151, 10, 1, 10, 46, 184, 666, 1782, 3301, 3500, 1789, 314, 15, 0, 11, 56, 258, 1109, 3717, 9180, 14545, 13007, 5206, 684, 19, 1]