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A339487 as a simple table

n a(n)
3 8
4 192
5 3344
6 52800
7 806168
8 12166272
9 182871584
10 2744987520
11 41184460328
12 617815378752
13 9267473759024
14 139013323899840
15 2085205952447288
16 31278119775589632
17 469171949135641664
18 7037579999715797760
19 105563703809659391048
20 1583455576216052670912
21 23751833738601248135504
22 356277506555834959529280

[8,192,3344,52800,806168,12166272,182871584,
 2744987520,41184460328,617815378752,9267473759024,
 139013323899840,2085205952447288,
 31278119775589632,469171949135641664,
 7037579999715797760,105563703809659391048,
 1583455576216052670912,23751833738601248135504,
 356277506555834959529280]

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Last modified September 28 00:46 EDT 2021. Contains 347698 sequences. (Running on oeis4.)