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A324444 as a simple table

na(n)
01
13
2240
31512000
41536288768000
5429266120461516800000
650406068004584362019389440000000
73534677027377560888380072035048488960000000000
8199761495428405897006583857561824669625759249203200000000000000

[1,3,240,1512000,1536288768000,
 429266120461516800000,
 50406068004584362019389440000000,
 3534677027377560888380072035048488960000000000,
 19976149542840589700658385756182466962575924920320\
 0000000000000]