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A026191 as a simple table

na(n)
12
21
36
43
510
64
75
816
918
107
1122
128
139
1428
1530
1611
1734
1812
1913
2040
2114
2215
2346
2448
2517
2652
2754
2819
2958
3020
3121
3264
3366
3423
3570
3624
3725
3876
3926
4027
4182
4284
4329
4488
4590
4631
4794
4832
4933
50100
51102
5235
53106
5436
5537
56112
5738
5839
59118
60120
6141

[2,1,6,3,10,4,5,16,18,7,22,8,9,28,30,11,34,12,13,
 40,14,15,46,48,17,52,54,19,58,20,21,64,66,23,70,
 24,25,76,26,27,82,84,29,88,90,31,94,32,33,100,102,
 35,106,36,37,112,38,39,118,120,41]