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A376878 as a triangular array

1
11
144
292727
53296256256
16125500125031253125
6157627008640194404665646656
27229891646460025168070352947823543823543
1385174081093124587521433600367001673400321677721616777216

A376878 as a square array

1112516612721385
14932125576298917408
42796500270016464109312
272561250864060025458752
2563125194401680701433600
3125466563529473670016
466568235437340032
82354316777216
16777216
1112516612721385
14932125576298917408
42796500270016464109312
272561250864060025458752
2563125194401680701433600
3125466563529473670016
466568235437340032
82354316777216
16777216