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A166964 as a simple table

na(n)
00
10
20
30
4960
54669200
61342968480
796351366720
82967164565120
951747096270240
10600189633086400
115123179804311360
1234443698001387840
13191288688014664240
14908558913657114720
153788089202221833600
1614145018198653072640
1748056437943548695360

[0,0,0,0,960,4669200,1342968480,96351366720,
 2967164565120,51747096270240,600189633086400,
 5123179804311360,34443698001387840,
 191288688014664240,908558913657114720,
 3788089202221833600,14145018198653072640,
 48056437943548695360]