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A056923 as a simple table

na(n)
00
12
260
33024
4240240
527907200
64475671200
7948964262400
8257256702743040
986839771951296000
1035728290125079552000
1117602963463032472448000
1210233395250958706770944000
136932022668773077815267328000

[0,2,60,3024,240240,27907200,4475671200,
 948964262400,257256702743040,86839771951296000,
 35728290125079552000,17602963463032472448000,
 10233395250958706770944000,
 6932022668773077815267328000]