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A349947 as a triangular array

1
24
359
671016
811121725
131418192636
15202127283749
2223293038395064
243132404151526581
333442435354666782100
354445555668698384101121

A349947 as a square array

12368131522243335
45711142023313444
91012182129324245
1617192730404355
25262838415356
363739515468
4950526669
64656783
818284
100101
121
12368131522243335
45711142023313444
91012182129324245
1617192730404355
25262838415356
363739515468
4950526669
64656783
818284
100101
121