n | a(n) |
---|---|
1 | 3 |
2 | 3 |
3 | 9 |
4 | 28 |
5 | 94 |
6 | 328 |
7 | 1197 |
8 | 4486 |
9 | 17235 |
10 | 67429 |
11 | 267932 |
12 | 1078003 |
13 | 4383784 |
14 | 17987897 |
15 | 74385984 |
16 | 309694232 |
17 | 1297037177 |
18 | 5460726214 |
19 | 23098296648 |
20 | 98113995068 |
21 | 418335662448 |
22 | 1789814398035 |
23 | 7681522429474 |
24 | 33061825858259 |
25 | 142674028869587 |
26 | 617180102839217 |
[3,3,9,28,94,328,1197,4486,17235,67429,267932, 1078003,4383784,17987897,74385984,309694232, 1297037177,5460726214,23098296648,98113995068, 418335662448,1789814398035,7681522429474, 33061825858259,142674028869587,617180102839217] |