n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 4 |
4 | 9 |
5 | 14 |
6 | 31 |
7 | 53 |
8 | 117 |
9 | 215 |
10 | 478 |
11 | 930 |
12 | 2092 |
13 | 4266 |
14 | 9732 |
15 | 20645 |
16 | 47820 |
17 | 104941 |
18 | 246931 |
19 | 558190 |
20 | 1334462 |
21 | 3097018 |
22 | 7521731 |
23 | 17874931 |
24 | 44092014 |
[1,1,3,4,9,14,31,53,117,215,478,930,2092,4266, 9732,20645,47820,104941,246931,558190,1334462, 3097018,7521731,17874931,44092014] |