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A126075 as a triangular array

1
21
521
12621
3014721
743716821
185904518921
46023010854201021
115056828412864221121
2868143469634815075241221

A126075 as a square array

12512307418546011502868
1261437902305681434
1271645108284696
1281854128348
1292064150
12102275
121124
1212
12
1
12512307418546011502868
1261437902305681434
1271645108284696
1281854128348
1292064150
12102275
121124
1212
12
1