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A348579 as a triangular array

1
23
456
891011
4748495051
71213141516
52535455565758
2728293031323334
171819202122232425
60616263646566676869
13741375137613771378137913801381138213831384

A348579 as a square array

1248477522717601374
3594812532818611375
6104913542919621376
115014553020631377
5115563121641378
16573222651379
583323661380
3424671381
25681382
691383
1384
1248477522717601374
3594812532818611375
6104913542919621376
115014553020631377
5115563121641378
16573222651379
583323661380
3424671381
25681382
691383
1384