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A007783
as a simple table
n
a(n)
1
3
2
6
3
9
4
18
5
22
6
32
7
46
8
58
9
77
10
97
11
114
12
135
13
160
14
186
15
218
16
238
17
279
18
312
19
349
[3,6,9,18,22,32,46,58,77,97,114,135,160,186,218, 238,279,312,349]