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A129688 as a triangular array

1
01
201
0201
20201
020201
2020201
02020201
202020201
0202020201

A129688 as a square array

1020202020
102020202
10202020
1020202
102020
10202
1020
102
10
1
1020202020
102020202
10202020
1020202
102020
10202
1020
102
10
1