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A248801 as a simple table

na(n)
01
12
22
32
43
54
64
74
84
95
106
116
126
137
148
158
169
1710
1810
1910
2011
2112
2212
2312
2412
2514
2616
2716
2816
2918
3020
3120
3220
3320
3421
3522
3623
3724
3825
3926
4027
4129
4230
4330
4430
4532
4634
4734
4834
4936
5039
5140
5241
5343
5445
5546
5647
5748
5849
5950
6050
6152
6255
6356
6457
6561
6664
6764
6865

[1,2,2,2,3,4,4,4,4,5,6,6,6,7,8,8,9,10,10,10,11,12,
 12,12,12,14,16,16,16,18,20,20,20,20,21,22,23,24,
 25,26,27,29,30,30,30,32,34,34,34,36,39,40,41,43,
 45,46,47,48,49,50,50,52,55,56,57,61,64,64,65]