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A005446 as a simple table

na(n)
01
11
23
336
4270
54320
617010
75443200
8204120
92351462400
101515591000
112172751257600
12354648294000
1310168475885568000
147447614174000
151830325659402240000
161595278956070800000
172987091476144455680000

[1,1,3,36,270,4320,17010,5443200,204120,
 2351462400,1515591000,2172751257600,354648294000,
 10168475885568000,7447614174000,
 1830325659402240000,1595278956070800000,
 2987091476144455680000]