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A254981 as a simple table

na(n)
11
23
34
47
56
612
78
814
913
1018
1112
1228
1314
1424
1524
1628
1718
1839
1920
2042
2132
2236
2324
2456
2531
2642
2739
2856
2930
3072
3132
3256
3348
3454
3548
3691
3738
3860
3956
4084
4142
4296
4344
4484
4578
4672
4748
48112
4957
5093
5172
5298
5354
54117
5572
56112
5780
5890
5960
60168
6162
6296
63104
64112
6584
66144

[1,3,4,7,6,12,8,14,13,18,12,28,14,24,24,28,18,39,
 20,42,32,36,24,56,31,42,39,56,30,72,32,56,48,54,
 48,91,38,60,56,84,42,96,44,84,78,72,48,112,57,93,
 72,98,54,117,72,112,80,90,60,168,62,96,104,112,84,
 144]