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A055067 as a simple table

na(n)
11
21
32
43
524
620
7720
8630
913440
1036288
113628800
12277200
13479001600
14444787200
155811886080
1620432412000
1720922789888000
181097800704000
196402373705728000
20304112751022080
21115852476579840000
222322315553259520000

[1,1,2,3,24,20,720,630,13440,36288,3628800,277200,
 479001600,444787200,5811886080,20432412000,
 20922789888000,1097800704000,6402373705728000,
 304112751022080,115852476579840000,
 2322315553259520000]