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A104557 as a triangular array

1
11
221
6641
24241861
120120963691
72072060024072121
5040504043201800600120161
4032040320352801512054001200200201
36288036288032256014112052920126002400300251

A104557 as a square array

112624120720504040320362880
12624120720504040320362880
141896600432035280322560
1636240180015120141120
1972600540052920
112120120012600
1162002400
120300
125
1
112624120720504040320362880
12624120720504040320362880
141896600432035280322560
1636240180015120141120
1972600540052920
112120120012600
1162002400
120300
125
1