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A161310 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 1
6 1
7 1
8 1
9 1
10 2
11 1
12 2
13 1
14 2
15 3
16 3
17 3
18 5
19 4
20 6
21 7
22 7
23 8
24 10
25 10
26 11
27 13
28 13
29 14
30 17
31 17
32 19
33 22
34 23
35 26
36 29
37 30
38 33
39 37
40 40
41 43
42 49
43 50
44 54
45 60
46 62
47 68
48 73
49 78
50 83
51 89
52 94
53 100
54 108
55 113
56 122
57 129
58 135
59 144
60 153
61 160
62 170
63 181
64 188
65 199
66 211
67 220
68 233
69 246
70 258
71 271
72 286
73 299

[0,0,0,0,1,1,1,1,1,2,1,2,1,2,3,3,3,5,4,6,7,7,8,10,
 10,11,13,13,14,17,17,19,22,23,26,29,30,33,37,40,
 43,49,50,54,60,62,68,73,78,83,89,94,100,108,113,
 122,129,135,144,153,160,170,181,188,199,211,220,
 233,246,258,271,286,299]

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Last modified April 19 03:46 EDT 2024. Contains 371782 sequences. (Running on oeis4.)