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A195463 as a simple table

n a(n)
0 11
1 23
2 71
3 263
4 1031
5 4103
6 16391
7 65543
8 262151
9 1048583
10 4194311
11 16777223
12 67108871
13 268435463
14 1073741831
15 4294967303
16 17179869191
17 68719476743
18 274877906951
19 1099511627783
20 4398046511111
21 17592186044423
22 70368744177671
23 281474976710663

[11,23,71,263,1031,4103,16391,65543,262151,
 1048583,4194311,16777223,67108871,268435463,
 1073741831,4294967303,17179869191,68719476743,
 274877906951,1099511627783,4398046511111,
 17592186044423,70368744177671,281474976710663]

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Last modified June 4 15:08 EDT 2024. Contains 373099 sequences. (Running on oeis4.)