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A166326 as a simple table

n a(n)
1 -1
2 17
3 7849
4 3667649
5 2395420006033
6 3143661612445145
7 11877172892329028459041
8 32347093457545958193355601
9 424678439961073471604787362241217 

[-1,17,7849,3667649,2395420006033,
 3143661612445145,11877172892329028459041,
 32347093457545958193355601,
 424678439961073471604787362241217]

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Last modified May 2 12:49 EDT 2024. Contains 372196 sequences. (Running on oeis4.)