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A305877 as a simple table

na(n)
00
11
22
31
411
521
62
712
822
91
10101
11201
1211
13111
14211
1521
16121
17221
182
19102
20202
2112
22112
23212
2422
25122
26222
271
281001
292001
30101
311101
322101
33201
341201
352201
3611
371011
382011
39111
401111
412111
42211
431211
442211
4521
461021
472021
48121
491121
502121
51221
521221
532221
542

[0,1,2,1,11,21,2,12,22,1,101,201,11,111,211,21,
 121,221,2,102,202,12,112,212,22,122,222,1,1001,
 2001,101,1101,2101,201,1201,2201,11,1011,2011,111,
 1111,2111,211,1211,2211,21,1021,2021,121,1121,
 2121,221,1221,2221,2]