n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 9 |
4 | 27 |
5 | 83 |
6 | 259 |
7 | 817 |
8 | 2599 |
9 | 8323 |
10 | 26797 |
11 | 86659 |
12 | 281287 |
13 | 915907 |
14 | 2990383 |
15 | 9786369 |
16 | 32092959 |
17 | 105435607 |
18 | 346950321 |
19 | 1143342603 |
20 | 3772698725 |
21 | 12463525229 |
22 | 41218894577 |
23 | 136451431723 |
24 | 452116980643 |
25 | 1499282161375 |
26 | 4975631425581 |
27 | 16524213199923 |
28 | 54913514061867 |
[1,1,3,9,27,83,259,817,2599,8323,26797,86659, 281287,915907,2990383,9786369,32092959,105435607, 346950321,1143342603,3772698725,12463525229, 41218894577,136451431723,452116980643, 1499282161375,4975631425581,16524213199923, 54913514061867] |