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A186753 as a simple table

na(n)
01
12
22
33
48
53
64
720
820
94
105
1140
1276
1340
145
156
1670
17216
18216
1970
206
217
22112
23511
24832
25511
26112
277
288
29168
301064
312568
322568
331064
34168
358
369
37240
382016
396768
4010036
416768
422016
43240
449
4510
46330
473552
4815840
4932680
5032680
5115840
523552
53330
5410
5511
56440

[1,2,2,3,8,3,4,20,20,4,5,40,76,40,5,6,70,216,216,
 70,6,7,112,511,832,511,112,7,8,168,1064,2568,2568,
 1064,168,8,9,240,2016,6768,10036,6768,2016,240,9,
 10,330,3552,15840,32680,32680,15840,3552,330,10,
 11,440]