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A170806 as a simple table

na(n)
112
220
321
422
5102
6201
7202
8212
91002
101012
111021
121022
131102
141201
151202
162001
172002
182011
192012
202021
212022
222101
232102
242112
252122
262201
272202
282212
2910002
3010012
3110021
3210022
3310112
3410121
3510122
3610211
3710212
3810221
3910222
4011002
4111102
4211201

[12,20,21,22,102,201,202,212,1002,1012,1021,1022,
 1102,1201,1202,2001,2002,2011,2012,2021,2022,2101,
 2102,2112,2122,2201,2202,2212,10002,10012,10021,
 10022,10112,10121,10122,10211,10212,10221,10222,
 11002,11102,11201]