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A122176 as a triangular array

1
21
331
4651
5101581
6153536121
7217012078171
828126330364153231
9362107921365969276301
10453301716436848452300465381
115549534321237620349149504960741471

A122176 as a square array

1234567891011
13610152128364555
15153570126210330495
183612033079217163432
112783641365436812376
117153969484520349
123276230014950
1304654960
138741
147
1
1234567891011
13610152128364555
15153570126210330495
183612033079217163432
112783641365436812376
117153969484520349
123276230014950
1304654960
138741
147
1