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A298661
as a simple table
n
a(n)
1
1
2
1
3
3
4
2
5
20
6
169
7
978
8
22938
9
329249
10
12541065
11
628713833
[1,1,3,2,20,169,978,22938,329249,12541065, 628713833]
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Last modified April 23 14:15 EDT 2024. Contains 371914 sequences. (Running on oeis4.)