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A198709 as a simple table

n a(n)
1 1
2 4
3 401
4 250031
5 851787199
6 15835552812749
7 1606578861528554441
8 889483369334451647489771
9 2687450673445984030296455830409 

[1,4,401,250031,851787199,15835552812749,
 1606578861528554441,889483369334451647489771,
 2687450673445984030296455830409]

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Last modified April 24 20:08 EDT 2024. Contains 371963 sequences. (Running on oeis4.)