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A101818 as a simple table

na(n)
11
21
31
41
56
62
71
821
936
106
111
1260
13300
14240
1524
161
17155
181800
193900
201800
21120
221
23378
249030
2542000
2650400
2715120
28720
291
30889
3140572
32357210
33882000
34670320
35141120
365040
371
382040
39169400
402610720
4111677680
4217781120
439313920
441451520
4540320

[1,1,1,1,6,2,1,21,36,6,1,60,300,240,24,1,155,1800,
 3900,1800,120,1,378,9030,42000,50400,15120,720,1,
 889,40572,357210,882000,670320,141120,5040,1,2040,
 169400,2610720,11677680,17781120,9313920,1451520,
 40320]