n | a(n) |
---|---|
0 | 0 |
1 | 2 |
2 | 7 |
3 | 22 |
4 | 69 |
5 | 218 |
6 | 694 |
7 | 2224 |
8 | 7167 |
9 | 23204 |
10 | 75415 |
11 | 245878 |
12 | 803700 |
13 | 2632502 |
14 | 8637127 |
15 | 28376122 |
16 | 93326289 |
17 | 307205138 |
18 | 1011931354 |
19 | 3335118004 |
20 | 10996652127 |
21 | 36271055864 |
22 | 119668397395 |
23 | 394905999598 |
24 | 1303417073160 |
25 | 4302619498442 |
[0,2,7,22,69,218,694,2224,7167,23204,75415,245878, 803700,2632502,8637127,28376122,93326289, 307205138,1011931354,3335118004,10996652127, 36271055864,119668397395,394905999598, 1303417073160,4302619498442] |