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A330860 as a simple table

na(n)
01
11
24
38
4144
53456
6172800
710368000
83810240000
9177811200000
109957427200000
1175278149632000000
121912817782149120000000
1353023308921173606400000000
1417742659631203112173568000000000
15426249654980023566857797632000000000
169600207854287580784554747166720000000000

[1,1,4,8,144,3456,172800,10368000,3810240000,
 177811200000,9957427200000,75278149632000000,
 1912817782149120000000,53023308921173606400000000,
 17742659631203112173568000000000,
 426249654980023566857797632000000000,
 9600207854287580784554747166720000000000]