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A253272 as a triangular array

0
12
233
3444
45555
556666
5667676
66777777
677878787
7788888888
78798989898
888899999999
7989810910

A253272 as a square array

0123455667787
234556677889
34566778788
4567788989
566778898
677889910
6778899
7889910
7889
899
89
9
0123455667787
234556677889
34566778788
4567788989
566778898
677889910
6778899
7889910
7889
899
89
9