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A120456 as a simple table

na(n)
01
12
22
34
44
54
67
78
88
97
108
1114
121
1314
148
1511
161
1713
1813
191
2011
2113
227
232
244
252
267
2713
2814
2911
3014
3111
3211
3314
3411
3514

[1,2,2,4,4,4,7,8,8,7,8,14,1,14,8,11,1,13,13,1,11,
 13,7,2,4,2,7,13,14,11,14,11,11,14,11,14]