n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 12 |
3 | 52 |
4 | 238 |
5 | 1115 |
6 | 5313 |
7 | 25582 |
8 | 124147 |
9 | 605854 |
10 | 2969417 |
11 | 14601804 |
12 | 71990585 |
13 | 355671293 |
14 | 1760174880 |
15 | 8722964916 |
16 | 43278373590 |
17 | 214928743357 |
18 | 1068241681155 |
19 | 5313039611577 |
20 | 26440634886864 |
21 | 131649846629066 |
22 | 655781098819477 |
23 | 3267854654023179 |
24 | 16289622505803944 |
25 | 81224322390209525 |
[1,3,12,52,238,1115,5313,25582,124147,605854, 2969417,14601804,71990585,355671293,1760174880, 8722964916,43278373590,214928743357,1068241681155, 5313039611577,26440634886864,131649846629066, 655781098819477,3267854654023179, 16289622505803944,81224322390209525] |