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A107663 as a simple table

n a(n)
0 1
1 9
2 7
3 25
4 31
5 81
6 127
7 289
8 511
9 1089
10 2047
11 4225
12 8191
13 16641
14 32767
15 66049
16 131071
17 263169
18 524287
19 1050625
20 2097151
21 4198401
22 8388607
23 16785409
24 33554431
25 67125249
26 134217727
27 268468225
28 536870911
29 1073807361
30 2147483647

[1,9,7,25,31,81,127,289,511,1089,2047,4225,8191,
 16641,32767,66049,131071,263169,524287,1050625,
 2097151,4198401,8388607,16785409,33554431,
 67125249,134217727,268468225,536870911,1073807361,
 2147483647]

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Last modified May 19 20:41 EDT 2019. Contains 323410 sequences. (Running on oeis4.)