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A015739 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 1
6 1
7 2
8 1
9 2
10 3
11 3
12 5
13 6
14 7
15 9
16 10
17 12
18 15
19 18
20 22
21 26
22 31
23 36
24 42
25 50
26 58
27 68
28 80
29 92
30 107
31 124
32 142
33 164
34 189
35 216
36 248
37 284
38 323
39 369
40 420
41 476
42 541
43 613
44 693
45 784
46 885
47 997
48 1123
49 1264
50 1419
51 1593
52 1787
53 2000
54 2239
55 2504
56 2795
57 3120
58 3479

[0,0,0,1,1,1,2,1,2,3,3,5,6,7,9,10,12,15,18,22,26,
 31,36,42,50,58,68,80,92,107,124,142,164,189,216,
 248,284,323,369,420,476,541,613,693,784,885,997,
 1123,1264,1419,1593,1787,2000,2239,2504,2795,3120,
 3479]

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Last modified April 12 12:18 EDT 2021. Contains 342920 sequences. (Running on oeis4.)