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A217877 as a simple table

na(n)
21
32
41
56
68
72
824
975
1020
116
12120
13864
14216
1572
1624
17720
1812005
192744
20882
21336
22120
235040
24196608
2540960
2612288
274608
281920
29720
3040320
313720087
32708588
33196830
3469984
3529160
3612960
375040
38362880
3980000000
4014000000
413600000
421200000
43480000
44216000
45100800
4640320

[1,2,1,6,8,2,24,75,20,6,120,864,216,72,24,720,
 12005,2744,882,336,120,5040,196608,40960,12288,
 4608,1920,720,40320,3720087,708588,196830,69984,
 29160,12960,5040,362880,80000000,14000000,3600000,
 1200000,480000,216000,100800,40320]