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A057212 as a triangular array

0
11
000
1111
00000
111111
0000000
11111111
000000000
1111111111
00000000000
111111111111
0000000000000
11111111111111

A057212 as a square array

01010101010101
1010101010101
010101010101
10101010101
0101010101
101010101
01010101
1010101
010101
10101
0101
101
01
1
01010101010101
1010101010101
010101010101
10101010101
0101010101
101010101
01010101
1010101
010101
10101
0101
101
01
1