n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 4 |
3 | 11 |
4 | 35 |
5 | 108 |
6 | 337 |
7 | 1049 |
8 | 3268 |
9 | 10179 |
10 | 31707 |
11 | 98764 |
12 | 307641 |
13 | 958273 |
14 | 2984932 |
15 | 9297787 |
16 | 28961747 |
17 | 90213164 |
18 | 281005665 |
19 | 875306665 |
20 | 2726499332 |
21 | 8492793331 |
22 | 26454265995 |
23 | 82402592652 |
24 | 256676457289 |
25 | 799523432529 |
26 | 2490441569572 |
[1,1,4,11,35,108,337,1049,3268,10179,31707,98764, 307641,958273,2984932,9297787,28961747,90213164, 281005665,875306665,2726499332,8492793331, 26454265995,82402592652,256676457289,799523432529, 2490441569572] |