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A013642 as a simple table

n a(n)
1 3
2 6
3 8
4 11
5 12
6 15
7 18
8 20
9 24
10 27
11 30
12 35
13 38
14 39
15 40
16 42
17 48
18 51
19 56
20 63
21 66
22 68
23 72
24 80
25 83
26 84
27 87
28 90
29 99
30 102
31 104
32 105
33 110
34 120
35 123
36 132
37 143
38 146
39 147
40 148
41 150
42 152
43 156
44 168
45 171
46 182
47 195
48 198
49 200
50 203
51 210
52 224
53 227
54 228
55 230
56 231
57 235
58 240
59 255
60 258
61 260
62 264

[3,6,8,11,12,15,18,20,24,27,30,35,38,39,40,42,48,
 51,56,63,66,68,72,80,83,84,87,90,99,102,104,105,
 110,120,123,132,143,146,147,148,150,152,156,168,
 171,182,195,198,200,203,210,224,227,228,230,231,
 235,240,255,258,260,264]

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Last modified January 29 16:58 EST 2020. Contains 331347 sequences. (Running on oeis4.)