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A274980 as a simple table

na(n)
11
22
31
44
54
61
72
84
912
1012
1112
126
133
1412
154
1612
1712
1812
193
206
213
2212
234
248
258
268
278
288
298
3056
3156
32168
33168
34840
35840
36840
37840
38840
39280
40840
41840
42840
43840
44840
45840
46280
47840
48840
49840
50840
51280
52280
53280
54840
55280
56840
57840
58840
59840
60840
61168
62168
63168
64168
65168
66168
67168

[1,2,1,4,4,1,2,4,12,12,12,6,3,12,4,12,12,12,3,6,3,
 12,4,8,8,8,8,8,8,56,56,168,168,840,840,840,840,
 840,280,840,840,840,840,840,840,280,840,840,840,
 840,280,280,280,840,280,840,840,840,840,840,168,
 168,168,168,168,168,168]