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A018937 as a simple table

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

[1,4,6,6,7,9,9,11,11,13,12,16,15,16,20,21,19,22,
 22,22,23,25,28,24,26,29,32,36,34,33,34,35,36,38,
 38,39,40,45,42,44,44,44,48,48,49,50,49,51,52,54,
 57,56,57,56,61,63,59,61,64,64,65,65,69,67,69,76,
 76,71,75,73,80,73]

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Last modified August 1 05:51 EDT 2021. Contains 346384 sequences. (Running on oeis4.)