n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 5 |
5 | 12 |
6 | 23 |
7 | 55 |
8 | 114 |
9 | 273 |
10 | 588 |
11 | 1428 |
12 | 3156 |
13 | 7752 |
14 | 17427 |
15 | 43263 |
16 | 98516 |
17 | 246675 |
18 | 567281 |
19 | 1430715 |
20 | 3316521 |
21 | 8414640 |
22 | 19633796 |
23 | 50067108 |
24 | 117464424 |
25 | 300830572 |
26 | 709098696 |
27 | 1822766520 |
28 | 4313876888 |
29 | 11124755664 |
30 | 26421284043 |
[0,1,1,3,5,12,23,55,114,273,588,1428,3156,7752, 17427,43263,98516,246675,567281,1430715,3316521, 8414640,19633796,50067108,117464424,300830572, 709098696,1822766520,4313876888,11124755664, 26421284043] |