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A054677 as a simple table

na(n)
11
22
31
412
524
6720
7144
82016
940320
10725760
113628800
1247900160
13239500800
14276756480
1517435658240
16871782912000
174184557977600
18711374856192000
1943553562624000
2057926238289920000
213649353012264960000
22324386934423552000
231124000727777607680000

[1,2,1,12,24,720,144,2016,40320,725760,3628800,
 47900160,239500800,276756480,17435658240,
 871782912000,4184557977600,711374856192000,
 43553562624000,57926238289920000,
 3649353012264960000,324386934423552000,
 1124000727777607680000]