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A328815
as a simple table
n
a(n)
1
2
2
4
3
10
4
31
5
45
6
85
7
151
8
253
9
420
10
775
11
1303
12
2521
13
4641
[2,4,10,31,45,85,151,253,420,775,1303,2521,4641]