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A075993 as a triangular array

1
11
201
2101
31001
311001
4110001
42010001
511100001
5210100001
62101000001
621101000001
7211010000001
73110010000001

A075993 as a square array

11223344556677
1011112122223
100110111111
10001100111
1000011000
100000110
10000001
1000000
100000
10000
1000
100
10
1
11223344556677
1011112122223
100110111111
10001100111
1000011000
100000110
10000001
1000000
100000
10000
1000
100
10
1