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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.

A330462 Triangle read by rows where T(n,k) is the number of k-element sets of nonempty sets of positive integers with total sum n.

Table of values

n a(n)
0 1
1 0
2 1
3 0
4 1
5 0
6 0
7 2
8 1
9 0
10 0
11 2
12 2
13 0
14 0
15 0
16 3
17 4
18 0
19 0
20 0
21 0
22 4
23 6
24 2
25 0
26 0
27 0
28 0
29 5
30 11
31 3
32 0
33 0
34 0
35 0
36 0
37 6
38 16
39 8
40 0
41 0
42 0
43 0
44 0
45 0
46 8
47 25
48 15
49 1
50 0
51 0
52 0
53 0
54 0
55 0
56 10
57 35
58 28
59 4
60 0
61 0
62 0
63 0
64 0
65 0
66 0
67 12
68 52
69 46
70 9
71 0
72 0
73 0
74 0
75 0
76 0
77 0

List of values

[1, 0, 1, 0, 1, 0, 0, 2, 1, 0, 0, 2, 2, 0, 0, 0, 3, 4, 0, 0, 0, 0, 4, 6, 2, 0, 0, 0, 0, 5, 11, 3, 0, 0, 0, 0, 0, 6, 16, 8, 0, 0, 0, 0, 0, 0, 8, 25, 15, 1, 0, 0, 0, 0, 0, 0, 10, 35, 28, 4, 0, 0, 0, 0, 0, 0, 0, 12, 52, 46, 9, 0, 0, 0, 0, 0, 0, 0]

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