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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.

A319137 Number of strict planar branching factorizations of n.

Table of values

n a(n)
1 1
2 1
3 1
4 1
5 1
6 3
7 1
8 3
9 1
10 3
11 1
12 9
13 1
14 3
15 3
16 7
17 1
18 9
19 1
20 9
21 3
22 3
23 1
24 37
25 1
26 3
27 3
28 9
29 1
30 25
31 1
32 21
33 3
34 3
35 3
36 57
37 1
38 3
39 3
40 37
41 1
42 25
43 1
44 9
45 9
46 3
47 1
48 161
49 1
50 9
51 3
52 9
53 1
54 37
55 3
56 37
57 3
58 3
59 1
60 153
61 1
62 3
63 9
64 75
65 3
66 25
67 1
68 9
69 3
70 25
71 1
72 345
73 1
74 3
75 9
76 9
77 3
78 25
79 1
80 161

List of values

[1, 1, 1, 1, 1, 3, 1, 3, 1, 3, 1, 9, 1, 3, 3, 7, 1, 9, 1, 9, 3, 3, 1, 37, 1, 3, 3, 9, 1, 25, 1, 21, 3, 3, 3, 57, 1, 3, 3, 37, 1, 25, 1, 9, 9, 3, 1, 161, 1, 9, 3, 9, 1, 37, 3, 37, 3, 3, 1, 153, 1, 3, 9, 75, 3, 25, 1, 9, 3, 25, 1, 345, 1, 3, 9, 9, 3, 25, 1, 161]