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A374648 as a simple table

na(n)
00
10
20
30
412
560
6240
71680
818480
945360
10574560
116320160
1219293120
13250810560
143615131520
1510637827200
16173837664000
172955240288000
188874542476800
19168616307059200
203378360124339200
2110123012406707200
22222987858828134400
235128720753047091200

[0,0,0,0,12,60,240,1680,18480,45360,574560,
 6320160,19293120,250810560,3615131520,10637827200,
 173837664000,2955240288000,8874542476800,
 168616307059200,3378360124339200,
 10123012406707200,222987858828134400,
 5128720753047091200]