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A052720 as a simple table

na(n)
00
10
20
30
40
50
6720
730240
81088640
939916800
101556755200
1165383718400
122964061900800
13144815595724800
147602818775552000
15427447366714368000
1625646842002862080000
171636734826000834560000
18110752389892723138560000

[0,0,0,0,0,0,720,30240,1088640,39916800,
 1556755200,65383718400,2964061900800,
 144815595724800,7602818775552000,
 427447366714368000,25646842002862080000,
 1636734826000834560000,110752389892723138560000]