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A210920
as a simple table
n
a(n)
1
1
2
3
3
70
4
6516
5
1741480
6
1297416720
7
2686765690144
8
15449867954722880
[1,3,70,6516,1741480,1297416720,2686765690144, 15449867954722880]
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Last modified September 14 11:47 EDT 2024. Contains 375921 sequences. (Running on oeis4.)
