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A015755 as a simple table

n a(n)
0 1
1 1
2 1
3 2
4 2
5 3
6 4
7 5
8 5
9 7
10 9
11 10
12 13
13 15
14 18
15 22
16 27
17 31
18 37
19 44
20 51
21 61
22 71
23 82
24 95
25 111
26 128
27 148
28 171
29 195
30 225
31 258
32 295
33 337
34 384
35 437
36 497
37 565
38 639
39 724
40 818
41 923
42 1042
43 1173
44 1319
45 1483
46 1665
47 1866
48 2092
49 2341
50 2616
51 2924
52 3263
53 3637
54 4053
55 4512
56 5016

[1,1,1,2,2,3,4,5,5,7,9,10,13,15,18,22,27,31,37,44,
 51,61,71,82,95,111,128,148,171,195,225,258,295,
 337,384,437,497,565,639,724,818,923,1042,1173,
 1319,1483,1665,1866,2092,2341,2616,2924,3263,3637,
 4053,4512,5016]

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Last modified April 24 12:22 EDT 2024. Contains 371937 sequences. (Running on oeis4.)