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A169011 as a simple table

na(n)
01
146
22070
393150
44191750
5188628750
68488293750
7381973218750
817188794843750
9773495767968750
1034807309558593750
111566328930136718750
1270484801856152343750
133171816083526855468750
14142731723758708496093750

[1,46,2070,93150,4191750,188628750,8488293750,
 381973218750,17188794843750,773495767968750,
 34807309558593750,1566328930136718750,
 70484801856152343750,3171816083526855468750,
 142731723758708496093750]