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A087397 as a simple table

n a(n)
1 3
2 10
3 6
4 15
5 45
6 66
7 120
8 153
9 231
10 378
11 435
12 630
13 780
14 861
15 1035
16 1326
17 1653
18 1770
19 2145
20 2415
21 2556
22 3003
23 3321
24 3828
25 4560
26 4950
27 5151
28 5565
29 5778
30 6216
31 7875
32 8385
33 9180
34 9453
35 10878
36 11175
37 12090
38 13041
39 13695
40 14706
41 15753
42 16110
43 17955
44 18336

[3,10,6,15,45,66,120,153,231,378,435,630,780,861,
 1035,1326,1653,1770,2145,2415,2556,3003,3321,3828,
 4560,4950,5151,5565,5778,6216,7875,8385,9180,9453,
 10878,11175,12090,13041,13695,14706,15753,16110,
 17955,18336]

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Last modified October 1 02:38 EDT 2022. Contains 357134 sequences. (Running on oeis4.)