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A060218 as a simple table

na(n)
115
2105
31120
412600
5151872
61897840
724408480
8320355000
94271484000
1057664963104
11786341441760
1210812193870800
13149707312950720
142085208989609360
1529192926025339776
16410525522071875000
175795654431511374080
1882105104444274758000
191166756747396368729440
2016626283650369421872480

[15,105,1120,12600,151872,1897840,24408480,
 320355000,4271484000,57664963104,786341441760,
 10812193870800,149707312950720,2085208989609360,
 29192926025339776,410525522071875000,
 5795654431511374080,82105104444274758000,
 1166756747396368729440,16626283650369421872480]