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A324403 as a simple table

na(n)
01
12
2400
3121680000
4281324160000000000
515539794609114833408000000000000
649933566483104048708063697937367040000000000000000
719323883089768863178599626514889213871887405416448000000000000000000000000

[1,2,400,121680000,281324160000000000,
 15539794609114833408000000000000,
 49933566483104048708063697937367040000000000000000\
 ,
 19323883089768863178599626514889213871887405416448\
 000000000000000000000000]