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A170265 as a simple table

na(n)
01
116
2240
33600
454000
5810000
612150000
7182250000
82733750000
941006250000
10615093750000
119226406250000
12138396093750000
132075941406250000
1431139121093750000
15467086816406250000
167006302246093750000

[1,16,240,3600,54000,810000,12150000,182250000,
 2733750000,41006250000,615093750000,9226406250000,
 138396093750000,2075941406250000,
 31139121093750000,467086816406250000,
 7006302246093750000]