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A115356 as a triangular array

1
11
001
0101
00001
001001
0000001
00010001
000000001
0000100001
00000000001
000001000001
0000000000001
00000010000001

A115356 as a square array

11000000000000
1010000000000
100100000000
10001000000
1000010000
100000100
10000001
1000000
100000
10000
1000
100
10
1
11000000000000
1010000000000
100100000000
10001000000
1000010000
100000100
10000001
1000000
100000
10000
1000
100
10
1