n | a(n) |
---|---|
1 | 3 |
2 | 9 |
3 | 21 |
4 | 45 |
5 | 92 |
6 | 177 |
7 | 351 |
8 | 702 |
9 | 1379 |
10 | 2724 |
11 | 5412 |
12 | 10787 |
13 | 21502 |
14 | 42958 |
15 | 85791 |
16 | 171441 |
17 | 342216 |
18 | 683462 |
19 | 1365580 |
20 | 2729447 |
21 | 5456194 |
22 | 10908253 |
23 | 21812343 |
24 | 43616683 |
25 | 87223016 |
26 | 174430392 |
[3,9,21,45,92,177,351,702,1379,2724,5412,10787, 21502,42958,85791,171441,342216,683462,1365580, 2729447,5456194,10908253,21812343,43616683, 87223016,174430392] |