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A306205 as a simple table

n a(n)
1 1
2 6
3 102
4 3420
5 191700
6 16291800
7 1966015800
8 321188943600
9 68482943802000
10 18508629682620000
11 6191158589749980000
12 2512773755138326680000
13 1216899394130358698760000
14 693258145152338464498800000 

[1,6,102,3420,191700,16291800,1966015800,
 321188943600,68482943802000,18508629682620000,
 6191158589749980000,2512773755138326680000,
 1216899394130358698760000,
 693258145152338464498800000]

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Last modified April 18 03:33 EDT 2024. Contains 371767 sequences. (Running on oeis4.)