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A030530 as a simple table

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

[0,1,2,2,3,3,4,4,4,5,5,5,6,6,6,7,7,7,8,8,8,8,9,9,
 9,9,10,10,10,10,11,11,11,11,12,12,12,12,13,13,13,
 13,14,14,14,14,15,15,15,15,16,16,16,16,16,17,17,
 17,17,17,18,18,18,18,18,19,19,19,19,19,20,20,20,
 20,20,21,21,21]

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Last modified November 22 13:47 EST 2019. Contains 329393 sequences. (Running on oeis4.)