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A371949 as a simple table

na(n)
13240
26415200
345606240
412702096000
5170514616320
6430865593920
725150150080000
8753411576268800
92398271752673280
103552119332387200
1149797297158400000
122595785508222566400
1313369373984761528320
1422330692411407861760
1528155000551019598080

[3240,6415200,45606240,12702096000,170514616320,
 430865593920,25150150080000,753411576268800,
 2398271752673280,3552119332387200,
 49797297158400000,2595785508222566400,
 13369373984761528320,22330692411407861760,
 28155000551019598080]