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A178845 as a simple table

n a(n)
1 1
2 2
3 2
4 12
5 20
6 180
7 648
8 5784
9 36936
10 485040
11 2034876
12 33492048
13 373375392
14 4974252864
15 52465459392
16 1067273994240
17 11538658531008
18 260749481442240 

[1,2,2,12,20,180,648,5784,36936,485040,2034876,
 33492048,373375392,4974252864,52465459392,
 1067273994240,11538658531008,260749481442240]

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Last modified August 15 05:43 EDT 2024. Contains 375172 sequences. (Running on oeis4.)