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A052747 as a simple table

na(n)
00
10
20
36
412
540
6180
71008
86720
951840
10453600
114435200
1247900160
13566092800
147264857600
15100590336000
161494484992000
1723712495206400
18400148356608000
197155594141696000
20135161222676480000
212688996956405760000
2256200036388880384000
231231048416137379840000

[0,0,0,6,12,40,180,1008,6720,51840,453600,4435200,
 47900160,566092800,7264857600,100590336000,
 1494484992000,23712495206400,400148356608000,
 7155594141696000,135161222676480000,
 2688996956405760000,56200036388880384000,
 1231048416137379840000]