n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 5 |
5 | 14 |
6 | 34 |
7 | 81 |
8 | 200 |
9 | 487 |
10 | 1187 |
11 | 2899 |
12 | 7072 |
13 | 17256 |
14 | 42109 |
15 | 102748 |
16 | 250717 |
17 | 611779 |
18 | 1492805 |
19 | 3642610 |
20 | 8888370 |
21 | 21688597 |
22 | 52922564 |
23 | 129136875 |
24 | 315108171 |
25 | 768898587 |
26 | 1876197092 |
27 | 4578127192 |
28 | 11171133721 |
29 | 27258794552 |
30 | 66514455833 |
[1,0,1,3,5,14,34,81,200,487,1187,2899,7072,17256, 42109,102748,250717,611779,1492805,3642610, 8888370,21688597,52922564,129136875,315108171, 768898587,1876197092,4578127192,11171133721, 27258794552,66514455833] |