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A120635 as a simple table

na(n)
11
23
34
45
57
612
78
89
911
1021
1113
1220
1316
1424
1528
1617
1719
1833
1923
2035
2132
2239
2325
2436
2527
2648
2729
2840
2931
3084
3132
3237
3352
3457
3556
3655
3741
3869
3964
4063
4143
4296
4347
4465
4577
4675
4749
4868
4953
5081
5176
5280
5359
5487
5591
5672
5792
5893
5961
60140
6164
6296
6388
6467
65112
66156
6771
6895
69100
70168
7173

[1,3,4,5,7,12,8,9,11,21,13,20,16,24,28,17,19,33,
 23,35,32,39,25,36,27,48,29,40,31,84,32,37,52,57,
 56,55,41,69,64,63,43,96,47,65,77,75,49,68,53,81,
 76,80,59,87,91,72,92,93,61,140,64,96,88,67,112,
 156,71,95,100,168,73]