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A071098
as a simple table
n
a(n)
1
18
2
492804
3
22396116645000
4
1675204080301481563567504
5
205572455982988820421241722535052040992
[18,492804,22396116645000, 1675204080301481563567504, 205572455982988820421241722535052040992]
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Last modified September 23 01:59 EDT 2024. Contains 376140 sequences. (Running on oeis4.)