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A039666
as a simple table
n
a(n)
1
1
2
3
3
15
4
30
5
35
6
56
7
70
8
78
9
105
10
140
11
168
12
190
13
210
14
248
15
264
16
357
17
420
18
570
19
616
20
630
[1,3,15,30,35,56,70,78,105,140,168,190,210,248, 264,357,420,570,616,630]