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A217977 as a simple table

n a(n)
1 2
2 2
3 16
4 98
5 1942
6 54504
7 3375350
8 368335390
9 79138501972
10 31734389399738
11 24359808536352098
12 35370314418915229140

[2,2,16,98,1942,54504,3375350,368335390,
 79138501972,31734389399738,24359808536352098,
 35370314418915229140]

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Last modified March 2 12:34 EST 2024. Contains 370467 sequences. (Running on oeis4.)