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A239469 as a simple table

n a(n)
1 0
2 0
3 0
4 1
5 2
6 1
7 3
8 4
9 5
10 6
11 8
12 11
13 13
14 15
15 20
16 24
17 30
18 35
19 43
20 52
21 63
22 74
23 89
24 106
25 127
26 148
27 177
28 208
29 246
30 287
31 338
32 396
33 464
34 538
35 630
36 732
37 853
38 985
39 1145
40 1324
41 1532
42 1765
43 2038
44 2345
45 2702
46 3098
47 3562
48 4081
49 4679
50 5348
51 6120
52 6987
53 7978
54 9087
55 10359

[0,0,0,1,2,1,3,4,5,6,8,11,13,15,20,24,30,35,43,52,
 63,74,89,106,127,148,177,208,246,287,338,396,464,
 538,630,732,853,985,1145,1324,1532,1765,2038,2345,
 2702,3098,3562,4081,4679,5348,6120,6987,7978,9087,
 10359]

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Last modified April 23 23:26 EDT 2024. Contains 371917 sequences. (Running on oeis4.)