n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 31 |
3 | 127 |
4 | 73 |
5 | 2047 |
6 | 8191 |
7 | 4681 |
8 | 131071 |
9 | 524287 |
10 | 42799 |
11 | 8388607 |
12 | 33554431 |
13 | 19173961 |
14 | 536870911 |
15 | 2147483647 |
16 | 53353631 |
17 | 1108378657 |
18 | 137438953471 |
19 | 78536544841 |
20 | 2199023255551 |
21 | 8796093022207 |
22 | 162139963543 |
23 | 140737488355327 |
24 | 562949953421311 |
25 | 321685687669321 |
[1,7,31,127,73,2047,8191,4681,131071,524287,42799, 8388607,33554431,19173961,536870911,2147483647, 53353631,1108378657,137438953471,78536544841, 2199023255551,8796093022207,162139963543, 140737488355327,562949953421311,321685687669321] |