n | a(n) |
---|---|
1 | 1 |
2 | 3 |
3 | 4 |
4 | 9 |
5 | 23 |
6 | 61 |
7 | 166 |
8 | 459 |
9 | 1284 |
10 | 3623 |
11 | 10292 |
12 | 29395 |
13 | 84327 |
14 | 242807 |
15 | 701314 |
16 | 2031085 |
17 | 5895951 |
18 | 17150013 |
19 | 49975428 |
20 | 145862571 |
21 | 426337773 |
22 | 1247741271 |
23 | 3655973226 |
24 | 10723668081 |
25 | 31485145902 |
26 | 92524150845 |
27 | 272120203908 |
28 | 800931753629 |
29 | 2359038637409 |
30 | 6952768502473 |
[1,3,4,9,23,61,166,459,1284,3623,10292,29395, 84327,242807,701314,2031085,5895951,17150013, 49975428,145862571,426337773,1247741271, 3655973226,10723668081,31485145902,92524150845, 272120203908,800931753629,2359038637409, 6952768502473] |