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A069141 as a simple table

na(n)
12
26
324
430
5720
6140
740320
85670
9403200
10399168
11479001600
12300300
1387178291200
146671808000
1592990177280
1686837751000
176402373705728000
181158789632000
192432902008176640000
20319318388573184
212548754484756480000
2253413257724968960000
23620448401733239439360000

[2,6,24,30,720,140,40320,5670,403200,399168,
 479001600,300300,87178291200,6671808000,
 92990177280,86837751000,6402373705728000,
 1158789632000,2432902008176640000,319318388573184,
 2548754484756480000,53413257724968960000,
 620448401733239439360000]