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A269776 as a triangular array

2
34
498
5162714
625647824
73612525222240
84921662098462466
9643431290306038161740108
10815122394768015040147244824176
1110072940881667445600736805659213320286
12121

A269776 as a square array

23456789101112
49162536496481100121
82764125216343512729
1478252620129023944088
242229843060768016674
4062438161504045600
6617401472473680
108482456592
17613320
286
23456789101112
49162536496481100121
82764125216343512729
1478252620129023944088
242229843060768016674
4062438161504045600
6617401472473680
108482456592
17613320
286