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A161285 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 0
7 1
8 1
9 1
10 1
11 1
12 1
13 1
14 2
15 1
16 2
17 1
18 2
19 1
20 2
21 2
22 3
23 3
24 4
25 4
26 5
27 5
28 7
29 6
30 7
31 7
32 9
33 8
34 9
35 11
36 12
37 11
38 12
39 13
40 16
41 14
42 17
43 17
44 20
45 19
46 21
47 21
48 25
49 25
50 28
51 27
52 32
53 31
54 36
55 36
56 45
57 42
58 49
59 49
60 57
61 56
62 64
63 70
64 77
65 77
66 85
67 88
68 98
69 98
70 115
71 115
72 130
73 129
74 143
75 146
76 161
77 170
78 183
79 189
80 208
81 211

[0,0,0,0,0,0,1,1,1,1,1,1,1,2,1,2,1,2,1,2,2,3,3,4,
 4,5,5,7,6,7,7,9,8,9,11,12,11,12,13,16,14,17,17,20,
 19,21,21,25,25,28,27,32,31,36,36,45,42,49,49,57,
 56,64,70,77,77,85,88,98,98,115,115,130,129,143,
 146,161,170,183,189,208,211]

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Last modified May 21 12:37 EDT 2022. Contains 353908 sequences. (Running on oeis4.)