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A026358 as a simple table

na(n)
11
22
33
42
54
65
73
86
97
108
119
124
1310
1411
155
1612
1713
1814
1915
206
2116
2217
237
2418
2519
268
2720
2821
299
3022
3123
3224
3325
3410
3526
3627
3711
3828
3929
4030
4131
4212
4332
4433
4513
4634
4735
4814
4936
5037
5115
5238
5339
5440
5541
5616
5742
5843
5917
6044
6145
6246
6347
6418
6548
6649

[1,2,3,2,4,5,3,6,7,8,9,4,10,11,5,12,13,14,15,6,16,
 17,7,18,19,8,20,21,9,22,23,24,25,10,26,27,11,28,
 29,30,31,12,32,33,13,34,35,14,36,37,15,38,39,40,
 41,16,42,43,17,44,45,46,47,18,48,49]