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A082990
as a simple table
n
a(n)
0
2
1
4
2
6
3
6
4
8
5
10
6
10
7
12
8
14
9
14
10
16
11
18
12
18
13
20
14
22
15
22
16
24
17
26
18
26
19
28
20
35
21
50
[2,4,6,6,8,10,10,12,14,14,16,18,18,20,22,22,24,26, 26,28,35,50]