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A140813 as a simple table

na(n)
24
312
424
5360
6360
72520
85040
95040
105040
1155440
1255440
133603600
1410810800
1510810800
1621621600
17367567200
18367567200
196983776800
206983776800
216983776800
226983776800
23160626866400
24160626866400
251124388064800
261124388064800

[4,12,24,360,360,2520,5040,5040,5040,55440,55440,
 3603600,10810800,10810800,21621600,367567200,
 367567200,6983776800,6983776800,6983776800,
 6983776800,160626866400,160626866400,
 1124388064800,1124388064800]