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A147075
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
13
6
65
7
313
8
2325
9
24995
10
319309
11
7251986
12
214577039
13
8040409512
[1,1,1,1,13,65,313,2325,24995,319309,7251986, 214577039,8040409512]
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Last modified March 28 16:34 EDT 2024. Contains 371254 sequences. (Running on oeis4.)