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A237898 as a triangular array

256
18481848
136003240413600
103536563534563534103536
789664103900722179310410390072789664
60823681926795869255932109255932101926795866082368
4677952036561111683959120885296197188500

A237898 as a square array

256184813600103536789664608236846779520
184832404563534103900721926795863656111168
136005635342179310492559321039591208852
1035361039007292559321096197188500
789664192679586
6082368
256184813600103536789664608236846779520
184832404563534103900721926795863656111168
136005635342179310492559321039591208852
1035361039007292559321096197188500
789664192679586
6082368