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A238743 as a triangular array

1
11
171
126261
156208561
11249929921241
11823224694432241821
13428892424084240888923421
144821888153216339264153216218884481
1702449285909761920672192067259097644928

A238743 as a square array

1111111111
172656124182342448702
126208992322488922188844928
156992694442408153216590976
11243224424083392641920672
118288921532161920672
134221888590976
144844928
1
1111111111
172656124182342448702
126208992322488922188844928
156992694442408153216590976
11243224424083392641920672
118288921532161920672
134221888590976
144844928
1