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A064004 as a simple table

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

[1,2,3,4,4,4,4,5,7,7,7,7,8,8,8,8,10,11,13,13,13,
 13,13,13,13,13,16,16,16,16,17,19,19,19,19,20,20,
 20,20,22,23,24,24,24,25,26,27,28,29,29,29,29,29,
 29,29,31,31,31,31,32,32,32,32,34,37,38,38,38,38,
 38,40]

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Last modified June 2 17:02 EDT 2020. Contains 334787 sequences. (Running on oeis4.)