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A048603 as a simple table

na(n)
01
112
2160
340320
471680
51277337600
679705866240
7167382319104000
891055981592576000
962282291409321984000
104024394214140805120000
115882770031248492462080000
129076273762497674084352000000

[1,12,160,40320,71680,1277337600,79705866240,
 167382319104000,91055981592576000,
 62282291409321984000,4024394214140805120000,
 5882770031248492462080000,
 9076273762497674084352000000]