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A370926 as a simple table

na(n)
01
11
22
36
428
5220
62520
734510
8519680
98527680
10154831600
113151456000
1271830281600
131809141934600
1449559087177600
151459865188782000
1645970426027926400
171543274016213529600
1855120521154277779200
192088917638216953544000
2083717918489664018560000

[1,1,2,6,28,220,2520,34510,519680,8527680,
 154831600,3151456000,71830281600,1809141934600,
 49559087177600,1459865188782000,45970426027926400,
 1543274016213529600,55120521154277779200,
 2088917638216953544000,83717918489664018560000]