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A038288 as a simple table

na(n)
01
18
210
364
4160
5100
6512
71920
82400
91000
104096
1120480
1238400
1332000
1410000
1532768
16204800
17512000
18640000
19400000
20100000
21262144
221966080
236144000
2410240000
259600000
264800000
271000000
282097152
2918350080
3068812800
31143360000

[1,8,10,64,160,100,512,1920,2400,1000,4096,20480,
 38400,32000,10000,32768,204800,512000,640000,
 400000,100000,262144,1966080,6144000,10240000,
 9600000,4800000,1000000,2097152,18350080,68812800,
 143360000]