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A337584 as a triangular array

1
11
111
1211
11111
123211
1122211
12243211
113243211
1224443211
11235353211
123558553211
1123558553211
12245788553

A337584 as a square array

11111111111111
1121212121212
111322322322
11224243534
1123445555
112343857
11235588
1123558
112355
11235
1123
11
1
11111111111111
1121212121212
111322322322
11224243534
1123445555
112343857
11235588
1123558
112355
11235
1123
11
1