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A002620 as a simple table

n a(n)
0 0
1 0
2 1
3 2
4 4
5 6
6 9
7 12
8 16
9 20
10 25
11 30
12 36
13 42
14 49
15 56
16 64
17 72
18 81
19 90
20 100
21 110
22 121
23 132
24 144
25 156
26 169
27 182
28 196
29 210
30 225
31 240
32 256
33 272
34 289
35 306
36 324
37 342
38 361
39 380
40 400
41 420
42 441
43 462
44 484
45 506
46 529
47 552
48 576
49 600
50 625
51 650
52 676
53 702
54 729
55 756
56 784
57 812

[0,0,1,2,4,6,9,12,16,20,25,30,36,42,49,56,64,72,
 81,90,100,110,121,132,144,156,169,182,196,210,225,
 240,256,272,289,306,324,342,361,380,400,420,441,
 462,484,506,529,552,576,600,625,650,676,702,729,
 756,784,812]

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Last modified May 27 11:57 EDT 2018. Contains 304690 sequences. (Running on oeis4.)