n | a(n) |
---|---|
1 | 3 |
2 | 11 |
3 | 33 |
4 | 114 |
5 | 377 |
6 | 1249 |
7 | 4151 |
8 | 13765 |
9 | 45704 |
10 | 151720 |
11 | 503627 |
12 | 1671816 |
13 | 5549529 |
14 | 18421629 |
15 | 61150537 |
16 | 202988906 |
17 | 673820905 |
18 | 2236745220 |
19 | 7424865048 |
20 | 24646804474 |
21 | 81814951110 |
22 | 271584345815 |
23 | 901522957697 |
24 | 2992601212814 |
25 | 9933925633736 |
[3,11,33,114,377,1249,4151,13765,45704,151720, 503627,1671816,5549529,18421629,61150537, 202988906,673820905,2236745220,7424865048, 24646804474,81814951110,271584345815,901522957697, 2992601212814,9933925633736] |