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A153125 as a triangular array

1
24
369
471012
58111417
6912151820
7101316192225
811141720232628
91215182124273033
10131619222528313436
1114172023262932353841
121518212427303336

A153125 as a square array

123456789101112
46789101112131415
9101112131415161718
121415161718192021
1718192021222324
20222324252627
252627282930
2830313233
33343536
3638
41
123456789101112
46789101112131415
9101112131415161718
121415161718192021
1718192021222324
20222324252627
252627282930
2830313233
33343536
3638
41