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A290969
as a simple table
n
a(n)
0
1
1
7
2
31
3
32767
4
4095
5
435356467
6
16777215
7
68719476735
8
281474976710655
[1,7,31,32767,4095,435356467,16777215,68719476735, 281474976710655]
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Last modified August 23 20:14 EDT 2024. Contains 375396 sequences. (Running on oeis4.)
