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A225207
as a simple table
n
a(n)
1
4
2
347
3
34163
4
3412143
5
341175325
6
34117055318
7
3411700692939
8
341170025540426
9
34117002022924247
[4,347,34163,3412143,341175325,34117055318, 3411700692939,341170025540426,34117002022924247]