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A142979 as a simple table

na(n)
11
23
313
466
5406
62868
723220
8210192
92116656
1023375520
11281792160
123673814400
1351599514240
14775673176320
1512440524320000
16211848037632000
173820318338816000
1872685037892096000
191455838255452672000

[1,3,13,66,406,2868,23220,210192,2116656,23375520,
 281792160,3673814400,51599514240,775673176320,
 12440524320000,211848037632000,3820318338816000,
 72685037892096000,1455838255452672000]