n | a(n) |
---|---|
1 | 0 |
2 | 4 |
3 | 6 |
4 | 13 |
5 | 15 |
6 | 27 |
7 | 47 |
8 | 55 |
9 | 111 |
10 | 223 |
11 | 447 |
12 | 895 |
13 | 1791 |
14 | 3583 |
15 | 7167 |
16 | 14335 |
17 | 28671 |
18 | 57343 |
19 | 114687 |
20 | 229375 |
21 | 458751 |
22 | 917503 |
23 | 1835007 |
24 | 3670015 |
25 | 7340031 |
26 | 14680063 |
27 | 29360127 |
28 | 58720255 |
29 | 117440511 |
[0,4,6,13,15,27,47,55,111,223,447,895,1791,3583, 7167,14335,28671,57343,114687,229375,458751, 917503,1835007,3670015,7340031,14680063,29360127, 58720255,117440511] |