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A075503 as a triangular array

1
81
64241
512448481
409676801600801
327681269764608041601201
2621442064384123289617920089601681
209715233292288316538886967296537600170242241

A075503 as a square array

18645124096327682621442097152
1244487680126976206438433292288
148160046080123289631653888
18041601792006967296
11208960537600
116817024
1224
1
18645124096327682621442097152
1244487680126976206438433292288
148160046080123289631653888
18041601792006967296
11208960537600
116817024
1224
1