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A038048型作为一个简单的表

n个a(n)
11
2
8
442
5144
61440
75760
875600
9524160
106531840
1143545600
121117670400
136706022400
14149448499200
152092278988800
1640537905408000
17376610217984000
1813871809695744000
19128047474114560000
205109094217170944000

[1,3,8,42,144,1440,5760,75600,524160,6531840,43545600,1117670400,6706022400,149448499200,2092278988800,40537905408000,376610217984000,13871809695744000,128047474114560000,5109094217170944000]