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A182976
as a simple table
n
a(n)
1
2
2
3
3
5
4
23
5
73
6
143
7
163
8
235
9
477
10
1238
11
4175
12
4641
13
7820
14
11217
15
25915
16
37643
17
95299
18
576088
19
1203677
[2,3,5,23,73,143,163,235,477,1238,4175,4641,7820, 11217,25915,37643,95299,576088,1203677]