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A053529 as a simple table

na(n)
01
11
24
318
4120
5840
67920
775600
8887040
910886400
10152409600
112235340800
1236883123200
13628929100800
1411769069312000
15230150688768000
164833164464128000
17105639166144512000
182464913876705280000
1959606099200327680000
201525429559126753280000
2140464026199993876480000

[1,1,4,18,120,840,7920,75600,887040,10886400,
 152409600,2235340800,36883123200,628929100800,
 11769069312000,230150688768000,4833164464128000,
 105639166144512000,2464913876705280000,
 59606099200327680000,1525429559126753280000,
 40464026199993876480000]