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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.

A059441 Triangle T(n,k) (n >= 1, 0 <= k <= n-1) giving number of regular labeled graphs with n nodes and degree k, read by rows.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 0
6 1
7 1
8 3
9 3
10 1
11 1
12 0
13 12
14 0
15 1
16 1
17 15
18 70
19 70
20 15
21 1
22 1
23 0
24 465
25 0
26 465
27 0
28 1
29 1
30 105
31 3507
32 19355
33 19355
34 3507
35 105
36 1
37 1
38 0
39 30016
40 0
41 1024380
42 0
43 30016
44 0
45 1
46 1
47 945
48 286884
49 11180820
50 66462606
51 66462606
52 11180820
53 286884
54 945
55 1

List of values

[1, 1, 1, 1, 0, 1, 1, 3, 3, 1, 1, 0, 12, 0, 1, 1, 15, 70, 70, 15, 1, 1, 0, 465, 0, 465, 0, 1, 1, 105, 3507, 19355, 19355, 3507, 105, 1, 1, 0, 30016, 0, 1024380, 0, 30016, 0, 1, 1, 945, 286884, 11180820, 66462606, 66462606, 11180820, 286884, 945, 1]