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.

A241926 Table read by antidiagonals: T(n,k) (n >= 1, k >= 1) is the number of necklaces with n black beads and k white beads.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 2
6 1
7 1
8 2
9 2
10 1
11 1
12 3
13 4
14 3
15 1
16 1
17 3
18 5
19 5
20 3
21 1
22 1
23 4
24 7
25 10
26 7
27 4
28 1
29 1
30 4
31 10
32 14
33 14
34 10
35 4
36 1
37 1
38 5
39 12
40 22
41 26
42 22
43 12
44 5
45 1
46 1
47 5
48 15
49 30
50 42
51 42
52 30
53 15
54 5
55 1
56 1
57 6
58 19
59 43
60 66
61 80
62 66
63 43
64 19
65 6
66 1
67 1
68 6
69 22
70 55
71 99
72 132
73 132
74 99
75 55
76 22
77 6
78 1

List of values

[1, 1, 1, 1, 2, 1, 1, 2, 2, 1, 1, 3, 4, 3, 1, 1, 3, 5, 5, 3, 1, 1, 4, 7, 10, 7, 4, 1, 1, 4, 10, 14, 14, 10, 4, 1, 1, 5, 12, 22, 26, 22, 12, 5, 1, 1, 5, 15, 30, 42, 42, 30, 15, 5, 1, 1, 6, 19, 43, 66, 80, 66, 43, 19, 6, 1, 1, 6, 22, 55, 99, 132, 132, 99, 55, 22, 6, 1]