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A013928 as a simple table

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

[0,1,2,3,3,4,5,6,6,6,7,8,8,9,10,11,11,12,12,13,13,
 14,15,16,16,16,17,17,17,18,19,20,20,21,22,23,23,
 24,25,26,26,27,28,29,29,29,30,31,31,31,31,32,32,
 33,33,34,34,35,36,37,37,38,39,39,39,40,41,42,42,
 43,44,45,45,46,47,47]

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Last modified April 19 12:14 EDT 2024. Contains 371792 sequences. (Running on oeis4.)