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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.

A249616 Number of elements in non-singleton blocks in the n-th set partition (A231428).

Table of values

n a(n)
0 0
1 2
2 2
3 2
4 3
5 2
6 4
7 2
8 4
9 3
10 2
11 4
12 3
13 3
14 4
15 2
16 4
17 4
18 4
19 5
20 2
21 4
22 4
23 4
24 5
25 3
26 5
27 2
28 4
29 4
30 4
31 5
32 3
33 5
34 3
35 5
36 4
37 2
38 4
39 4
40 4
41 5
42 3
43 5
44 3
45 5
46 4
47 3
48 5
49 4
50 4
51 5
52 2
53 4
54 4
55 4
56 5
57 4
58 6
59 4
60 6
61 5
62 4
63 6
64 5
65 5
66 6
67 2
68 4
69 4
70 4
71 5
72 4
73 6
74 4
75 6
76 5
77 4
78 6
79 5
80 5
81 6

List of values

[0, 2, 2, 2, 3, 2, 4, 2, 4, 3, 2, 4, 3, 3, 4, 2, 4, 4, 4, 5, 2, 4, 4, 4, 5, 3, 5, 2, 4, 4, 4, 5, 3, 5, 3, 5, 4, 2, 4, 4, 4, 5, 3, 5, 3, 5, 4, 3, 5, 4, 4, 5, 2, 4, 4, 4, 5, 4, 6, 4, 6, 5, 4, 6, 5, 5, 6, 2, 4, 4, 4, 5, 4, 6, 4, 6, 5, 4, 6, 5, 5, 6]

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