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A159551 as a simple table

na(n)
010
1111
2212
3313
4414
5515
6616
7717
8818
9919
101020
111121
121222
131323
141424
151525
161626
171727
181828
191929
202030
212131
222232
232333
242434
252535
262636
272737
282838
292939
303040
313141
323242
333343
343444
353545
363646
373747
383848
393949
404050
414151
424252
434353

[10,111,212,313,414,515,616,717,818,919,1020,1121,
 1222,1323,1424,1525,1626,1727,1828,1929,2030,2131,
 2232,2333,2434,2535,2636,2737,2838,2939,3040,3141,
 3242,3343,3444,3545,3646,3747,3848,3949,4050,4151,
 4252,4353]