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A220073 as a triangular array

1
12
213
3124
42135
531246
6421357
75312468
864213579
97531246810
1086421357911
119753124681012
12108642

A220073 as a square array

1123456789101112
2112345678910
32112345678
4321123456
543211234
65432112
765432
87654
9876
1098
1110
12
1123456789101112
2112345678910
32112345678
4321123456
543211234
65432112
765432
87654
9876
1098
1110
12