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A239898 as a simple table

na(n)
01
124
25760
3580608
41393459200
573574645760
624103053950976000
7578473294823424000
89440684171518279680000
9271211974879377138647040000
103579998068407778230140928000000
11282308419108727654719684608000000
12258955866680053703121272297226240000000

[1,24,5760,580608,1393459200,73574645760,
 24103053950976000,578473294823424000,
 9440684171518279680000,
 271211974879377138647040000,
 3579998068407778230140928000000,
 282308419108727654719684608000000,
 258955866680053703121272297226240000000]