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A026921 as a triangular array

0
10
010
1110
01110
112110
0212110
12322110
023322110
1254422110
03464422110
137775422110
03610875422110
1391113985422110

A026921 as a square array

01010101010101
0111122223333
011213354769
0112234671011
01122447813
011224579
01122458
0112245
011224
01122
0112
011
01
0
01010101010101
0111122223333
011213354769
0112234671011
01122447813
011224579
01122458
0112245
011224
01122
0112
011
01
0