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A372968 as a triangular array

1
13
177
1152511
131795521
16324123912121
112772799162117543
1255218540313121118533743
1511655916255156217471239543961
110231968165279781214580116801382367363

A372968 as a square array

1111111111
371531631272555111023
725792417272185655919681
115523999140311625565279
2112162131211562178121
211751185747145801
43337239516801
434393823
61673
63
1111111111
371531631272555111023
725792417272185655919681
115523999140311625565279
2112162131211562178121
211751185747145801
43337239516801
434393823
61673
63