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A199342 as a simple table

na(n)
12
23
323
443
5223
6233
7433
8443
92243
102333
112423
123323
133343
143433
154243
164423
1722343
1822433
1923333
2024223
2124443
2232233
2332323
2432423
2532443
2633223
2733343
2842223
2942323
3042433
3142443
3243223
33222323
34223243
35223423
36224233
37224423
38224443
39232333
40232433
41233323
42233423
43234323
44234343
45242243
46243233
47243343
48243433
49244243
50244333

[2,3,23,43,223,233,433,443,2243,2333,2423,3323,
 3343,3433,4243,4423,22343,22433,23333,24223,24443,
 32233,32323,32423,32443,33223,33343,42223,42323,
 42433,42443,43223,222323,223243,223423,224233,
 224423,224443,232333,232433,233323,233423,234323,
 234343,242243,243233,243343,243433,244243,244333]