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A167167 as a simple table

n a(n)
0 -1
1 1
2 1
3 3
4 5
5 11
6 21
7 43
8 85
9 171
10 341
11 683
12 1365
13 2731
14 5461
15 10923
16 21845
17 43691
18 87381
19 174763
20 349525
21 699051
22 1398101
23 2796203
24 5592405
25 11184811
26 22369621
27 44739243
28 89478485
29 178956971
30 357913941
31 715827883
32 1431655765
33 2863311531

[-1,1,1,3,5,11,21,43,85,171,341,683,1365,2731,
 5461,10923,21845,43691,87381,174763,349525,699051,
 1398101,2796203,5592405,11184811,22369621,
 44739243,89478485,178956971,357913941,715827883,
 1431655765,2863311531]

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Last modified May 7 17:40 EDT 2021. Contains 343652 sequences. (Running on oeis4.)