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A339580 as a simple table

n a(n)
1 1
2 3
3 90
4 1122660
5 19099920
6 85864770
7 26089808580
8 554688278430
9 4090932431513070
10 95405042230542330 

[1,3,90,1122660,19099920,85864770,26089808580,
 554688278430,4090932431513070,95405042230542330]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)