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A088554 as a simple table

n a(n)
1 2
2 7
3 31
4 157
5 3907
6 19531
7 2441407
8 12207031
9 61035157
10 305175781
11 9313225746154785157
12 177635683940025046467781066894531

[2,7,31,157,3907,19531,2441407,12207031,61035157,
 305175781,9313225746154785157,
 177635683940025046467781066894531]

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Last modified April 25 04:42 EDT 2024. Contains 371964 sequences. (Running on oeis4.)