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A147334
as a simple table
n
a(n)
1
1
2
1
3
1
4
1
5
1
6
1
7
3
8
9
9
19
10
45
11
171
12
735
13
3657
14
20047
15
135531
[1,1,1,1,1,1,3,9,19,45,171,735,3657,20047,135531]
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Last modified August 28 23:11 EDT 2024. Contains 375508 sequences. (Running on oeis4.)