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A075273
as a simple table
n
a(n)
2
5
3
8
4
37
5
176
6
196
7
1471
8
6885
9
5948
10
60460
11
280600
12
199316
13
2533987
14
11698223
15
7080928
[5,8,37,176,196,1471,6885,5948,60460,280600, 199316,2533987,11698223,7080928]