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A077299 as a simple table

na(n)
012
13456
278
39101112
41314
515161718
61920
721222
8324
9252
10627282
11930
123132
1333343536
143738
1539404142
164344
1745464748
184950
1951525354
205556
2157585960
226162
23636
244656
2566
26768
2769707172
287374
2975767778
307980
3181828
32384
33858
34687888
35990

[12,3456,78,9101112,1314,15161718,1920,21222,324,
 252,627282,930,3132,33343536,3738,39404142,4344,
 45464748,4950,51525354,5556,57585960,6162,636,
 4656,66,768,69707172,7374,75767778,7980,81828,384,
 858,687888,990]