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A054652 as a simple table

na(n)
01
12
214
3204
45016
5185520
69595440
7659846880
858130513280
96376568728320
10851542303852800
11135930981520857600
1225547289000870067200
135581430113409537587200
141402137089367777207244800
15401230026747563176171008000
16129714370868892377008336896000

[1,2,14,204,5016,185520,9595440,659846880,
 58130513280,6376568728320,851542303852800,
 135930981520857600,25547289000870067200,
 5581430113409537587200,1402137089367777207244800,
 401230026747563176171008000,
 129714370868892377008336896000]