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A139551 as a triangular array

1
11
111
1111
11111
111111
1121111
11211111
112111111
1123111111
11231111111
112311111111
1113411111111
11134111111111

A139551 as a square array

11111111111111
1111111111111
111122222211
11111133333
1111111144
111111111
11111111
1111111
111111
11111
1111
111
11
1
11111111111111
1111111111111
111122222211
11111133333
1111111144
111111111
11111111
1111111
111111
11111
1111
111
11
1