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A123394 as a simple table

na(n)
00
164
254000
348387776
443449047520
539017102749504
635037312017058000
731463467090220398016
828254158407188855215040
925372202786113074403284544
1022784209847768873321556750000

[0,64,54000,48387776,43449047520,39017102749504,
 35037312017058000,31463467090220398016,
 28254158407188855215040,
 25372202786113074403284544,
 22784209847768873321556750000]