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A252219 as a triangular array

874
12121212
184310781843
3147143714373147
50112836330328365011
81786674104861048666748178
14627174783567444776356741747814627
26610475801226941888661888661226944758026610
50441

A252219 as a square array

87412121843314750118178146272661050441
121210781437283666741747847580
1843143733031048635674122694
314728361048644776188866
5011667435674188866
817817478122694
1462747580
26610
87412121843314750118178146272661050441
121210781437283666741747847580
1843143733031048635674122694
314728361048644776188866
5011667435674188866
817817478122694
1462747580
26610