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A131217 as a triangular array

1
11
111
1111
11001
110011
1110101
11111111
110000001
1100000011
11100000101

A131217 as a square array

11111111111
1111111111
110011001
10001000
1111000
101000
11000
1000
111
10
1
11111111111
1111111111
110011001
10001000
1111000
101000
11000
1000
111
10
1