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A240827 as a simple table

na(n)
11
22
33
44
55
66
79
89
99
107
118
129
1310
1411
1512
1615
1715
1815
1913
2014
2115
2218
2318
2418
2518
2618
2718
2814
2916
3018
3125
3226
3324
3423
3522
3624
3720
3824
3924
4029
4128
4230
4329
4429
4527
4630
4728
4830
4927
5033
5133
5236
5332
5433
5527
5636
5736
5843
5936
6036
6138
6236
6336
6433
6532
6636
6739
6850
6948
7045
7139
7242
7337
7440
7542
7649
7744
7848
7948
8053
8148
8247
8342
8448
8544
8653
8748
8857
8952
9060

[1,2,3,4,5,6,9,9,9,7,8,9,10,11,12,15,15,15,13,14,
 15,18,18,18,18,18,18,14,16,18,25,26,24,23,22,24,
 20,24,24,29,28,30,29,29,27,30,28,30,27,33,33,36,
 32,33,27,36,36,43,36,36,38,36,36,33,32,36,39,50,
 48,45,39,42,37,40,42,49,44,48,48,53,48,47,42,48,
 44,53,48,57,52,60]