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A119698 as a simple table

na(n)
00
12
248
32160
440320
5787500
612773376
7198942744
82905943040
940973240880
10558886900000
117437264466632
1296894798594048
131240510066959800
1415645553270401600
15194802398523000000
162398428702498447360
1729240457953102773740
18353391128284307097600

[0,2,48,2160,40320,787500,12773376,198942744,
 2905943040,40973240880,558886900000,7437264466632,
 96894798594048,1240510066959800,15645553270401600,
 194802398523000000,2398428702498447360,
 29240457953102773740,353391128284307097600]