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A124320 as a triangular array

1
11
126
131260
1420120840
1530210168015120
1642336302430240332640
17565045040554406652808648640
1872720792095040123552017297280259459200
1990990118801544402162160324324005189184008821612800

A124320 as a square array

1111111111
123456789
612203042567290
60120210336504720990
840168030245040792011880
15120302405544095040154440
33264066528012355202162160
86486401729728032432400
259459200518918400
8821612800
1111111111
123456789
612203042567290
60120210336504720990
840168030245040792011880
15120302405544095040154440
33264066528012355202162160
86486401729728032432400
259459200518918400
8821612800