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A255315 as a triangular array

1
11
111
0211
02111
012111
0121111
01121111
002211111
0021211111
00212111111
001212111111

A255315 as a square array

111000000000
11221110000
1112212221
111122112
11111221
1111112
111111
11111
1111
111
11
1
111000000000
11221110000
1112212221
111122112
11111221
1111112
111111
11111
1111
111
11
1