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A066991 as a simple table

na(n)
11
21
32
41
512
66
71
8120
9360
1024
111
121680
1360480
1420160
15120
161
1730240
1819958400
1979833600
201814400
21720
221
23665280
2410897286400
25871782912000
26217945728000
27239500800
285040
291
3017297280
318892185702400
3220274183401472000

[1,1,2,1,12,6,1,120,360,24,1,1680,60480,20160,120,
 1,30240,19958400,79833600,1814400,720,1,665280,
 10897286400,871782912000,217945728000,239500800,
 5040,1,17297280,8892185702400,20274183401472000]