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A147067
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
13
6
65
7
297
8
2247
9
24427
10
296303
11
6915839
12
203810183
13
7383199843
[1,1,1,1,13,65,297,2247,24427,296303,6915839, 203810183,7383199843]