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A071257
as a simple table
n
a(n)
1
0
2
2
3
3
4
6
5
5
6
15
7
7
8
20
9
18
10
35
11
11
12
54
13
13
14
63
15
60
16
72
17
17
18
117
19
19
20
130
21
105
22
143
23
23
[0,2,3,6,5,15,7,20,18,35,11,54,13,63,60,72,17,117, 19,130,105,143,23]