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A038240 as a simple table

na(n)
01
14
210
316
480
5100
664
7480
81200
91000
10256
112560
129600
1316000
1410000
151024
1612800
1764000
18160000
19200000
20100000
214096
2261440
23384000
241280000
252400000
262400000
271000000
2816384
29286720
302150400
318960000
3222400000
3333600000

[1,4,10,16,80,100,64,480,1200,1000,256,2560,9600,
 16000,10000,1024,12800,64000,160000,200000,100000,
 4096,61440,384000,1280000,2400000,2400000,1000000,
 16384,286720,2150400,8960000,22400000,33600000]