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A048854 as a triangular array

1
21
12121
120180301
16803360840561
3024075600252002520901
665280199584083160011088059401321
1729728060540480302702405045040360360120121821
5189184002075673600121080960024216192021621600960960218402401
176432256007939451520052929676800123502579201323241920735134402227680367203061

A048854 as a square array

12121201680302406652801729728051891840017643225600
112180336075600199584060540480207567360079394515200
1308402520083160030270240121080960052929676800
1562520110880504504024216192012350257920
1905940360360216216001323241920
11321201296096073513440
1182218402227680
124036720
1306
1
12121201680302406652801729728051891840017643225600
112180336075600199584060540480207567360079394515200
1308402520083160030270240121080960052929676800
1562520110880504504024216192012350257920
1905940360360216216001323241920
11321201296096073513440
1182218402227680
124036720
1306
1