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A196870 as a simple table

na(n)
11
22
36
436
5360
66120
7171360
87882560
9591192000
1072125424000
1114280833952000
124584147698592000
132383756803267840000
142007123228351521280000
152735708960243123504640000
166034973966296330451235840000
1721544857059677899710911948800000

[1,2,6,36,360,6120,171360,7882560,591192000,
 72125424000,14280833952000,4584147698592000,
 2383756803267840000,2007123228351521280000,
 2735708960243123504640000,
 6034973966296330451235840000,
 21544857059677899710911948800000]