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A161091 as a simple table

n a(n)
1 0
2 0
3 1
4 1
5 1
6 1
7 1
8 1
9 1
10 1
11 1
12 2
13 1
14 1
15 2
16 3
17 2
18 2
19 3
20 4
21 3
22 3
23 4
24 5
25 4
26 4
27 6
28 6
29 5
30 6
31 7
32 8
33 7
34 7
35 8
36 10
37 8
38 8
39 11
40 11
41 10
42 11
43 13
44 13
45 13
46 13
47 15
48 18
49 15
50 16
51 20
52 21
53 19
54 21
55 23
56 24
57 24
58 24
59 27
60 30
61 28
62 28
63 33
64 36
65 33
66 35
67 39
68 42
69 41
70 42
71 45
72 49
73 47
74 48
75 55
76 56
77 54
78 58
79 63
80 67
81 65
82 66
83 72
84 78

[0,0,1,1,1,1,1,1,1,1,1,2,1,1,2,3,2,2,3,4,3,3,4,5,
 4,4,6,6,5,6,7,8,7,7,8,10,8,8,11,11,10,11,13,13,13,
 13,15,18,15,16,20,21,19,21,23,24,24,24,27,30,28,
 28,33,36,33,35,39,42,41,42,45,49,47,48,55,56,54,
 58,63,67,65,66,72,78]

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Last modified May 18 03:30 EDT 2022. Contains 353783 sequences. (Running on oeis4.)