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A177622
as a simple table
n
a(n)
1
1
2
20
3
1662
4
353608
5
153356948
6
118150658380
7
147434290284772
8
278770751057930416
[1,20,1662,353608,153356948,118150658380, 147434290284772,278770751057930416]
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Last modified August 11 07:13 EDT 2024. Contains 375059 sequences. (Running on oeis4.)