n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 21 |
4 | 45 |
5 | 93 |
6 | 189 |
7 | 381 |
8 | 765 |
9 | 1533 |
10 | 3069 |
11 | 6141 |
12 | 12285 |
13 | 24573 |
14 | 49149 |
15 | 98301 |
16 | 196605 |
17 | 393213 |
18 | 786429 |
19 | 1572861 |
20 | 3145725 |
21 | 6291453 |
22 | 12582909 |
23 | 25165821 |
24 | 50331645 |
25 | 100663293 |
26 | 201326589 |
27 | 402653181 |
28 | 805306365 |
29 | 1610612733 |
[1,3,9,21,45,93,189,381,765,1533,3069,6141,12285, 24573,49149,98301,196605,393213,786429,1572861, 3145725,6291453,12582909,25165821,50331645, 100663293,201326589,402653181,805306365, 1610612733] |