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A181814 as a simple table

na(n)
11
22
312
424
5720
6720
7151200
8302400
91814400
101814400
114191264000
124191264000
13125863657920000
14125863657920000
15125863657920000
16251727315840000
17128509312009478400000
18128509312009478400000
191246500488605217541696000000

[1,2,12,24,720,720,151200,302400,1814400,1814400,
 4191264000,4191264000,125863657920000,
 125863657920000,125863657920000,251727315840000,
 128509312009478400000,128509312009478400000,
 1246500488605217541696000000]