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A268116
as a simple table
n
a(n)
1
1
2
2
3
5
4
15
5
67
6
457
7
5628
8
119908
9
4350527
[1,2,5,15,67,457,5628,119908,4350527]
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Last modified April 23 03:30 EDT 2024. Contains 371906 sequences. (Running on oeis4.)