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A091478 as a simple table

na(n)
01
11
21
31
41
53
66
76
81
96
1030
11120
12360
13720
14720
151
1610
1790
18720
195040
2030240
21151200
22604800
231814400
243628800
253628800
261
2715
28210
292730
3032760
31360360
323603600
3332432400
34259459200
351816214400
3610897286400
3754486432000
38217945728000
39653837184000
401307674368000
411307674368000

[1,1,1,1,1,3,6,6,1,6,30,120,360,720,720,1,10,90,
 720,5040,30240,151200,604800,1814400,3628800,
 3628800,1,15,210,2730,32760,360360,3603600,
 32432400,259459200,1816214400,10897286400,
 54486432000,217945728000,653837184000,
 1307674368000,1307674368000]