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A121261 as a simple table

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

[0,0,1,1,2,2,3,3,5,5,7,7,8,8,11,11,12,12,13,13,16,
 16,17,17,18,18,19,19,20,20,23,23,27,27,28,28,29,
 29,30,30,31,31,32,32,36,36,37,37,41,41,42,42,43,
 43,44,44,45,45,47,47,48,48,50,50,52,52,53,53,59,
 59,61,61,63,63]

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Last modified October 23 08:40 EDT 2021. Contains 348211 sequences. (Running on oeis4.)