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A018231 as a simple table

na(n)
11
22
33
44
58
69
712
816
918
1027
1132
1236
1348
1464
1572
16108
17128
18144
19192
20256
21288
22432
23576
241152
251728
262304

[1,2,3,4,8,9,12,16,18,27,32,36,48,64,72,108,128,
 144,192,256,288,432,576,1152,1728,2304]