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A177954 as a simple table

na(n)
01
12
21
32
42
51
63
75
84
91
103
116
127
134
141
154
1611
1717
1814
196
201
214
2212
2322
2424
2516
266
271
285
2919
3043
3159
3251
3327
348
351
365
3720
3850
3980
4086
4162
4229
438
441
456
4629
4786
48164
49212
50188
51113
5244
5310
541

[1,2,1,2,2,1,3,5,4,1,3,6,7,4,1,4,11,17,14,6,1,4,
 12,22,24,16,6,1,5,19,43,59,51,27,8,1,5,20,50,80,
 86,62,29,8,1,6,29,86,164,212,188,113,44,10,1]