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A223440 as a triangular array

16
4848
144256144
43213761376432
129674241411274241296
388840160147520147520401603888
1166421760015621763099264156217621760011664
349921180256166939206718220867182208166939201180256

A223440 as a square array

1648144432129638881166434992
4825613767424401602176001180256
144137614112147520156217616693920
4327424147520309926467182208
129640160156217667182208
388821760016693920
116641180256
1648144432129638881166434992
4825613767424401602176001180256
144137614112147520156217616693920
4327424147520309926467182208
129640160156217667182208
388821760016693920
116641180256