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A369866 as a simple table

na(n)
10
24
39
464
525
67992
749
82097152
959049
10100000001000
11121
12106993241210880
13169
1430491346729331198648
158649756618750
1675557863725914323419136
17289
1874347713614042750878184448000
19361
2053687091200000000000000000001280000000
2130041942495081695978842
22412195366437884247746798137865015318817176

[0,4,9,64,25,7992,49,2097152,59049,100000001000,
 121,106993241210880,169,30491346729331198648,
 8649756618750,75557863725914323419136,289,
 74347713614042750878184448000,361,
 53687091200000000000000000001280000000,
 30041942495081695978842,
 412195366437884247746798137865015318817176]