n | a(n) |
---|---|
0 | 1 |
1 | 7 |
2 | 31 |
3 | 127 |
4 | 511 |
5 | 2031 |
6 | 8043 |
7 | 31735 |
8 | 125063 |
9 | 492367 |
10 | 1937763 |
11 | 7624303 |
12 | 29995559 |
13 | 118000431 |
14 | 464192219 |
15 | 1826013415 |
16 | 7183010967 |
17 | 28255752751 |
18 | 111149170563 |
19 | 437224979743 |
20 | 1719900889847 |
21 | 6765528227247 |
22 | 26613372893339 |
23 | 104688284286487 |
[1,7,31,127,511,2031,8043,31735,125063,492367, 1937763,7624303,29995559,118000431,464192219, 1826013415,7183010967,28255752751,111149170563, 437224979743,1719900889847,6765528227247, 26613372893339,104688284286487] |