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A088059
as a simple table
n
a(n)
1
1
2
5
3
11
4
19
5
29
6
41
7
55
8
71
9
89
10
109
11
131
12
155
13
181
14
209
15
239
16
271
17
305
18
341
19
379
[1,5,11,19,29,41,55,71,89,109,131,155,181,209,239, 271,305,341,379]