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A290011 as a simple table

n a(n)
4 6
5 85
6 900
7 9450
8 104160
9 1224720
10 15422400
11 207900000
12 2993760000
13 45924278400
14 748280332800
15 12913284384000
16 235381386240000
17 4520194398720000
18 91233825306624000
19 1931115968990208000
20 42778526977105920000
21 989887004576870400000
22 23885015465274163200000

[6,85,900,9450,104160,1224720,15422400,207900000,
 2993760000,45924278400,748280332800,
 12913284384000,235381386240000,4520194398720000,
 91233825306624000,1931115968990208000,
 42778526977105920000,989887004576870400000,
 23885015465274163200000]

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Last modified August 10 11:24 EDT 2024. Contains 375056 sequences. (Running on oeis4.)