n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 13 |
5 | 37 |
6 | 111 |
7 | 348 |
8 | 1115 |
9 | 3690 |
10 | 12437 |
11 | 42646 |
12 | 148530 |
13 | 523835 |
14 | 1868356 |
15 | 6729649 |
16 | 24454173 |
17 | 89552497 |
18 | 330263689 |
19 | 1225741014 |
20 | 4575462854 |
21 | 17169395749 |
22 | 64738926261 |
23 | 245187658138 |
24 | 932406910922 |
25 | 3559219448897 |
26 | 13634163069767 |
27 | 52398809327631 |
28 | 201994189232865 |
29 | 780899820381385 |
30 | 3027006453635929 |
[1,1,2,5,13,37,111,348,1115,3690,12437,42646, 148530,523835,1868356,6729649,24454173,89552497, 330263689,1225741014,4575462854,17169395749, 64738926261,245187658138,932406910922, 3559219448897,13634163069767,52398809327631, 201994189232865,780899820381385,3027006453635929] |