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A128868 as a triangular array

2
43
254
1355
21476
231494
1231555
21331476
121442495
1121432577
11131333498
0121314436912

A128868 as a square array

242122121110
35313212111
4541331212
574134131
69514413
4542331
574234
69534
5743
796
89
12
242122121110
35313212111
4541331212
574134131
69514413
4542331
574234
69534
5743
796
89
12