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A214351
as a simple table
n
a(n)
1
8
2
232
3
20840
4
5349708
5
3766437036
6
7118347901224
7
35699489509054494
8
472117658204259171294
[8,232,20840,5349708,3766437036,7118347901224, 35699489509054494,472117658204259171294]