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A075072 as a simple table

na(n)
11
21
31
412
51
660
71
820160
960480
1015120
111
1239916800
131
148648640
151816214400
1610461394944000
171
18533531142144000
191
2010137091700736000
211689515283456000
2214079294028800
231
2451704033477769953280000
25129260083694424883200000
2632382376266240000

[1,1,1,12,1,60,1,20160,60480,15120,1,39916800,1,
 8648640,1816214400,10461394944000,1,
 533531142144000,1,10137091700736000,
 1689515283456000,14079294028800,1,
 51704033477769953280000,129260083694424883200000,
 32382376266240000]