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A134841 as a simple table

na(n)
01
12
23
33
43
54
64
76
84
97
105
115
125
135
146
156
169
178
189
196
2012
217
227
237
247
257
267
278
288
2912
308
3114
328
3312
348
3515
369
379
3812
399
409
4112
429
439
4413
4510
4615
4710
4815
4912
5015
5110
5215
5310
5418

[1,2,3,3,3,4,4,6,4,7,5,5,5,5,6,6,9,8,9,6,12,7,7,7,
 7,7,7,8,8,12,8,14,8,12,8,15,9,9,12,9,9,12,9,9,13,
 10,15,10,15,12,15,10,15,10,18]