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.

A261494 Number A(n,k) of necklaces with n white beads and k*n black beads; square array A(n,k), n>=0, k>=0, read by antidiagonals.

Table of values

n a(n)
0 1
1 1
2 1
3 1
4 1
5 1
6 1
7 1
8 2
9 1
10 1
11 1
12 3
13 4
14 1
15 1
16 1
17 4
18 10
19 10
20 1
21 1
22 1
23 5
24 19
25 43
26 26
27 1
28 1
29 1
30 6
31 31
32 116
33 201
34 80
35 1
36 1
37 1
38 7
39 46
40 245
41 776
42 1038
43 246
44 1
45 1
46 1
47 8
48 64
49 446
50 2126
51 5620
52 5538
53 810
54 1
55 1
56 1
57 9
58 85
59 735
60 4751
61 19811
62 42288
63 30667
64 2704
65 1

List of values

[1, 1, 1, 1, 1, 1, 1, 1, 2, 1, 1, 1, 3, 4, 1, 1, 1, 4, 10, 10, 1, 1, 1, 5, 19, 43, 26, 1, 1, 1, 6, 31, 116, 201, 80, 1, 1, 1, 7, 46, 245, 776, 1038, 246, 1, 1, 1, 8, 64, 446, 2126, 5620, 5538, 810, 1, 1, 1, 9, 85, 735, 4751, 19811, 42288, 30667, 2704, 1]