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A121854 as a simple table

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

[0,3,4,5,6,7,7,8,8,9,9,10,10,11,11,12,12,12,13,13,
 14,14,14,15,15,15,16,16,16,16,17,17,17,18,18,18,
 18,19,19,19,19,20,20,20,20,21,21,21,21,21,22,22,
 22,22,23,23,23,23,23,24,24,24]

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Last modified February 18 09:15 EST 2020. Contains 332011 sequences. (Running on oeis4.)