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A140939 as a simple table

n a(n)
0 1
1 31824
2 200443464
3 431621592480
4 418241323113120
5 216147115784860416
6 66906538465238667936
7 13494534142758137486784

[1,31824,200443464,431621592480,418241323113120,
 216147115784860416,66906538465238667936,
 13494534142758137486784]

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Last modified January 23 20:39 EST 2021. Contains 340386 sequences. (Running on oeis4.)