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A166268 as a simple table

na(n)
01
13
24
35
45
55
67
72
89
97
106
1111
128
1310
141
159
1614
1710
1815
197
207
2114
2214
2316
248
2513
2613
2712
2818
2914
3013
3115
320
3316
349
350
3622
3716
3819
3916
4011
4117
4216
4323
4419
459
4622
4718
4816
492
5018
5127
5212
5323
5411
5515
5624
574
5827
599
6023
6123
6220
630
6419
6515
6622
6724
6822
6917
7018
7128
7226
7327
7417
7512

[1,3,4,5,5,5,7,2,9,7,6,11,8,10,1,9,14,10,15,7,7,
 14,14,16,8,13,13,12,18,14,13,15,0,16,9,0,22,16,19,
 16,11,17,16,23,19,9,22,18,16,2,18,27,12,23,11,15,
 24,4,27,9,23,23,20,0,19,15,22,24,22,17,18,28,26,
 27,17,12]