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A319598 as a simple table

n a(n)
1 0
2 1
3 3
4 5
5 4095
6 4097
7 12291
8 20485
9 21845
10 16777215
11 16777217
12 16781313
13 50331651
14 50343939
15 83886085
16 83906565
17 89458005
18 89478485
19 68702703615
20 68719476735
21 68719476737
22 68736258049
23 206158430211
24 206208774147
25 343597383685
26 343602954245
27 343681290245

[0,1,3,5,4095,4097,12291,20485,21845,16777215,
 16777217,16781313,50331651,50343939,83886085,
 83906565,89458005,89478485,68702703615,
 68719476735,68719476737,68736258049,206158430211,
 206208774147,343597383685,343602954245,
 343681290245]

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Last modified April 24 15:57 EDT 2024. Contains 371961 sequences. (Running on oeis4.)