n | a(n) |
---|---|
1 | -1 |
2 | 7 |
3 | 23 |
4 | 55 |
5 | 119 |
6 | 247 |
7 | 503 |
8 | 1015 |
9 | 2039 |
10 | 4087 |
11 | 8183 |
12 | 16375 |
13 | 32759 |
14 | 65527 |
15 | 131063 |
16 | 262135 |
17 | 524279 |
18 | 1048567 |
19 | 2097143 |
20 | 4194295 |
21 | 8388599 |
22 | 16777207 |
23 | 33554423 |
24 | 67108855 |
25 | 134217719 |
26 | 268435447 |
27 | 536870903 |
28 | 1073741815 |
29 | 2147483639 |
[-1,7,23,55,119,247,503,1015,2039,4087,8183,16375, 32759,65527,131063,262135,524279,1048567,2097143, 4194295,8388599,16777207,33554423,67108855, 134217719,268435447,536870903,1073741815, 2147483639] |