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A006317
as a simple table
n
a(n)
1
1
2
3
3
7
4
12
5
19
6
27
7
37
8
46
9
58
10
71
11
86
12
102
13
121
14
137
15
157
16
178
17
201
18
225
19
253
20
276
21
304
22
334
23
364
[1,3,7,12,19,27,37,46,58,71,86,102,121,137,157, 178,201,225,253,276,304,334,364]