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A117405 as a simple table

n a(n)
0 4
1 4
2 4
3 9
4 15
5 33
6 65
7 129
8 254
9 511
10 1027
11 2047
12 4097
13 8193
14 16382
15 32765
16 65531
17 131073
18 262142
19 524289
20 1048577
21 2097149
22 4194311
23 8388607
24 16777219
25 33554429
26 67108867
27 134217731
28 268435457
29 536870918
30 1073741821
31 2147483649
32 4294967297
33 8589934589

[4,4,4,9,15,33,65,129,254,511,1027,2047,4097,8193,
 16382,32765,65531,131073,262142,524289,1048577,
 2097149,4194311,8388607,16777219,33554429,
 67108867,134217731,268435457,536870918,1073741821,
 2147483649,4294967297,8589934589]

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Last modified April 19 17:39 EDT 2024. Contains 371797 sequences. (Running on oeis4.)