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A091275 as a simple table

na(n)
12
23
33
44
56
69
79
810
910
1012
1114
1213
1313
1417
1517
1620
1728
1828
1927
2029
2128
2229
2331
2431
2532
2632
2734
2833
2933
3034
3134
3238
3338
3440
3540
3641
3741
3845
3947
4047
4158
4258
4360
4460
4559
4659
4773
4873
4974
5074
5176
5276
5383
5483
5584
5684
5788
5888
5990
6090
6188
6290
6389
6489
6594
6694
6797
6897
69102
70102
71103

[2,3,3,4,6,9,9,10,10,12,14,13,13,17,17,20,28,28,
 27,29,28,29,31,31,32,32,34,33,33,34,34,38,38,40,
 40,41,41,45,47,47,58,58,60,60,59,59,73,73,74,74,
 76,76,83,83,84,84,88,88,90,90,88,90,89,89,94,94,
 97,97,102,102,103]