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A066920 as a simple table

n a(n)
1 1
2 1
3 2
4 2
5 2
6 3
7 4
8 4
9 6
10 7
11 7
12 9
13 11
14 12
15 15
16 18
17 19
18 23
19 26
20 28
21 34
22 39
23 42
24 49
25 56
26 60
27 69
28 79
29 85
30 97
31 110
32 118
33 133
34 150
35 162
36 181
37 203
38 219
39 243
40 271
41 292
42 323
43 359
44 387
45 425
46 471
47 507
48 554
49 612
50 659
51 719
52 791
53 851
54 924
55 1012
56 1089
57 1179
58 1289
59 1386
60 1497
61 1630

[1,1,2,2,2,3,4,4,6,7,7,9,11,12,15,18,19,23,26,28,
 34,39,42,49,56,60,69,79,85,97,110,118,133,150,162,
 181,203,219,243,271,292,323,359,387,425,471,507,
 554,612,659,719,791,851,924,1012,1089,1179,1289,
 1386,1497,1630]

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Last modified March 28 14:38 EDT 2024. Contains 371254 sequences. (Running on oeis4.)