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A080489 as a simple table

na(n)
14
224
3264
420064
52006400
6200640000
720064000000
82006400000000
9200640000000000
1020064000000000000
112006400000000000000
12200640000000000000000
1320064000000000000000000

[4,24,264,20064,2006400,200640000,20064000000,
 2006400000000,200640000000000,20064000000000000,
 2006400000000000000,200640000000000000000,
 20064000000000000000000]