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A181897 as a simple table

na(n)
11
21
31
41
53
62
71
86
98
103
116
121
1310
1420
1515
1630
1720
1824
191
2015
2140
2245
2390
24120
25144
2615
2790
2840
29120
301
3121
3270
33105
34210
35420
36504
37105
38630
39280
40840
41210
42504
43420
44720
451
4628
47112
48210
49420
501120
511344
52420
532520
541120
553360
561680
574032

[1,1,1,1,3,2,1,6,8,3,6,1,10,20,15,30,20,24,1,15,
 40,45,90,120,144,15,90,40,120,1,21,70,105,210,420,
 504,105,630,280,840,210,504,420,720,1,28,112,210,
 420,1120,1344,420,2520,1120,3360,1680,4032]