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A326856 as a simple table

na(n)
01
11
20
30
40
524
6144
70
80
940320
10403200
110
120
13479001600
148643317760
1529059430400
160
1720922789888000
18475108274995200
191871463083212800
200
212432902008176640000
2276354225980899328000
23525098781423304704000
240
25620448401733239439360000

[1,1,0,0,0,24,144,0,0,40320,403200,0,0,479001600,
 8643317760,29059430400,0,20922789888000,
 475108274995200,1871463083212800,0,
 2432902008176640000,76354225980899328000,
 525098781423304704000,0,620448401733239439360000]