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A239471 as a simple table

n a(n)
1 0
2 0
3 0
4 0
5 0
6 1
7 2
8 2
9 3
10 2
11 4
12 5
13 7
14 8
15 9
16 11
17 13
18 16
19 20
20 23
21 27
22 31
23 37
24 43
25 52
26 59
27 70
28 80
29 93
30 108
31 126
32 144
33 167
34 191
35 221
36 253
37 292
38 332
39 382
40 435
41 498
42 567
43 649
44 736
45 839
46 951
47 1082
48 1226
49 1393
50 1573
51 1784
52 2013
53 2277
54 2568
55 2902
56 3266
57 3683
58 4141

[0,0,0,0,0,1,2,2,3,2,4,5,7,8,9,11,13,16,20,23,27,
 31,37,43,52,59,70,80,93,108,126,144,167,191,221,
 253,292,332,382,435,498,567,649,736,839,951,1082,
 1226,1393,1573,1784,2013,2277,2568,2902,3266,3683,
 4141]

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Last modified October 19 02:41 EDT 2019. Contains 328211 sequences. (Running on oeis4.)