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A085116 as a simple table

na(n)
04
112
2480
32880
4171360
515079680
62979744768
7256258050048
82206253681888256
932081134788337130496
103025251010540191405772800
1160806680954426264344203059200
1222247876027117358528051602802320179200

[4,12,480,2880,171360,15079680,2979744768,
 256258050048,2206253681888256,
 32081134788337130496,3025251010540191405772800,
 60806680954426264344203059200,
 22247876027117358528051602802320179200]