n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 41 |
6 | 123 |
7 | 374 |
8 | 1147 |
9 | 3538 |
10 | 10958 |
11 | 34042 |
12 | 105997 |
13 | 330632 |
14 | 1032781 |
15 | 3229714 |
16 | 10109310 |
17 | 31667245 |
18 | 99260192 |
19 | 311294876 |
20 | 976709394 |
21 | 3065676758 |
22 | 9625674442 |
23 | 30231524869 |
24 | 94972205349 |
25 | 298419158008 |
26 | 937861780439 |
27 | 2947969125284 |
28 | 9267666915326 |
[1,1,2,5,14,41,123,374,1147,3538,10958,34042, 105997,330632,1032781,3229714,10109310,31667245, 99260192,311294876,976709394,3065676758, 9625674442,30231524869,94972205349,298419158008, 937861780439,2947969125284,9267666915326] |