n | a(n) |
---|---|
1 | -1 |
2 | 3 |
3 | 15 |
4 | 47 |
5 | 127 |
6 | 319 |
7 | 767 |
8 | 1791 |
9 | 4095 |
10 | 9215 |
11 | 20479 |
12 | 45055 |
13 | 98303 |
14 | 212991 |
15 | 458751 |
16 | 983039 |
17 | 2097151 |
18 | 4456447 |
19 | 9437183 |
20 | 19922943 |
21 | 41943039 |
22 | 88080383 |
23 | 184549375 |
24 | 385875967 |
25 | 805306367 |
26 | 1677721599 |
27 | 3489660927 |
28 | 7247757311 |
29 | 15032385535 |
[-1,3,15,47,127,319,767,1791,4095,9215,20479, 45055,98303,212991,458751,983039,2097151,4456447, 9437183,19922943,41943039,88080383,184549375, 385875967,805306367,1677721599,3489660927, 7247757311,15032385535] |