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A200251 as a triangular array

2
33
465
510128
615262413
72145694821
828751351819634
93611226740547619255
10451644489511215125238489
11552257501792338736453292768144
126630511253434716812063

A200251 as a square array

23456789101112
361015212836455566
512264575112164225305
824691352674487501125
134818140595117923434
2196476121533877168
341921252364512063
553843292
89768
144
23456789101112
361015212836455566
512264575112164225305
824691352674487501125
134818140595117923434
2196476121533877168
341921252364512063
553843292
89768
144