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A072509 as a simple table

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

[2,2,3,3,4,5,6,6,6,7,7,7,8,10,11,11,11,13,13,14,
 14,15,15,15,15,17,18,19,19,20,21,22,22,22,23,23,
 23,23,26,27,27,27,29,29,30,30,31,31,31,31,32,34,
 35,35,36,37,38,38,38,39,39,39,39,42,42,43,43,45,
 45,46,46,47,47]

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Last modified April 25 05:56 EDT 2024. Contains 371964 sequences. (Running on oeis4.)