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A010097 as a simple table

na(n)
00
12
212
313
4112
5113
6114
7115
8232
9233
10234
11235
12236
13237
14238
15239
163840
173841
183842
193843
203844
213845
223846
233847
243848
253849
263850
273851
283852
293853
303854
313855
327712
337713
347714
357715

[0,2,12,13,112,113,114,115,232,233,234,235,236,
 237,238,239,3840,3841,3842,3843,3844,3845,3846,
 3847,3848,3849,3850,3851,3852,3853,3854,3855,7712,
 7713,7714,7715]