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A054731 as a simple table

n a(n)
1 0
2 3
3 6
4 10
5 15
6 18
7 21
8 28
9 30
10 36
11 45
12 55
13 60
14 63
15 66
16 78
17 84
18 90
19 91
20 105
21 108
22 120
23 126
24 135
25 136
26 150
27 153
28 165
29 168
30 171
31 190
32 198
33 210
34 216
35 231
36 234
37 253
38 270
39 273
40 276
41 280
42 300
43 315
44 325
45 330
46 351
47 360
48 378
49 396
50 406
51 408
52 420
53 435
54 450
55 459
56 465
57 468

[0,3,6,10,15,18,21,28,30,36,45,55,60,63,66,78,84,
 90,91,105,108,120,126,135,136,150,153,165,168,171,
 190,198,210,216,231,234,253,270,273,276,280,300,
 315,325,330,351,360,378,396,406,408,420,435,450,
 459,465,468]

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Last modified April 25 03:15 EDT 2024. Contains 371964 sequences. (Running on oeis4.)