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A365991 as a triangular array

1
23
318
4834
52482
6131241
73333123
8188838318
94942084834
102322321042482
115581581521241
122813293293263123

A365991 as a square array

123456789101112
318213318423528
8341338925813
482383423129
24182082583
1234104129
3182523
834126
4823
241
12
3
123456789101112
318213318423528
8341338925813
482383423129
24182082583
1234104129
3182523
834126
4823
241
12
3