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A297769 as a triangular array

1
23
547
106815
219141631
421117303263
851223336264127
17013244765126128255
34118284895129254256511
682192960961912575105121023
1365203461124192

A297769 as a square array

125102142851703416821365
3469111213181920
7814172324282934
1516303347486061
313262659596124
6364126129191192
127128254257
255256510
511512
1023
125102142851703416821365
3469111213181920
7814172324282934
1516303347486061
313262659596124
6364126129191192
127128254257
255256510
511512
1023