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A085903 as a simple table

n a(n)
1 1
2 1
3 7
4 9
5 31
6 49
7 127
8 225
9 511
10 961
11 2047
12 3969
13 8191
14 16129
15 32767
16 65025
17 131071
18 261121
19 524287
20 1046529
21 2097151
22 4190209
23 8388607
24 16769025
25 33554431
26 67092481
27 134217727
28 268402689
29 536870911
30 1073676289
31 2147483647

[1,1,7,9,31,49,127,225,511,961,2047,3969,8191,
 16129,32767,65025,131071,261121,524287,1046529,
 2097151,4190209,8388607,16769025,33554431,
 67092481,134217727,268402689,536870911,1073676289,
 2147483647]

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Last modified April 20 07:43 EDT 2024. Contains 371799 sequences. (Running on oeis4.)