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A291072 as a simple table

na(n)
1-1
222
31
41
5122
6122
711
811
911
1011
112122
122122
132122
142122
15111
16211
17111
18211
19111
20211
21111
22211
2312122
2422122
2512122
2622122
2712122
2822122
2912122
3022122
311111
321211
332111
342211
351111
361211
372111
382211
391111
401211
412111
422211
431111
441211
452111
462211
47112122
48122122
49212122
50222122

[-1,22,1,1,122,122,11,11,11,11,2122,2122,2122,
 2122,111,211,111,211,111,211,111,211,12122,22122,
 12122,22122,12122,22122,12122,22122,1111,1211,
 2111,2211,1111,1211,2111,2211,1111,1211,2111,2211,
 1111,1211,2111,2211,112122,122122,212122,222122]