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A198178
as a simple table
n
a(n)
1
1
2
4
3
9
4
59
5
2033
6
51688
7
4522496
8
559601114
9
174674654015
[1,4,9,59,2033,51688,4522496,559601114, 174674654015]
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Last modified March 28 17:42 EDT 2024. Contains 371254 sequences. (Running on oeis4.)