n | a(n) |
---|---|
1 | 1 |
2 | 7 |
3 | 23 |
4 | 63 |
5 | 159 |
6 | 383 |
7 | 895 |
8 | 2047 |
9 | 4607 |
10 | 10239 |
11 | 22527 |
12 | 49151 |
13 | 106495 |
14 | 229375 |
15 | 491519 |
16 | 1048575 |
17 | 2228223 |
18 | 4718591 |
19 | 9961471 |
20 | 20971519 |
21 | 44040191 |
22 | 92274687 |
23 | 192937983 |
24 | 402653183 |
25 | 838860799 |
26 | 1744830463 |
27 | 3623878655 |
28 | 7516192767 |
[1,7,23,63,159,383,895,2047,4607,10239,22527, 49151,106495,229375,491519,1048575,2228223, 4718591,9961471,20971519,44040191,92274687, 192937983,402653183,838860799,1744830463, 3623878655,7516192767] |