n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 4 |
3 | 13 |
4 | 67 |
5 | 229 |
6 | 229 |
7 | 958 |
8 | 958 |
9 | 7519 |
10 | 27202 |
11 | 27202 |
12 | 204349 |
13 | 1267231 |
14 | 1267231 |
15 | 10833169 |
16 | 39530983 |
17 | 125624425 |
18 | 125624425 |
19 | 125624425 |
20 | 1287885892 |
21 | 4774670293 |
22 | 15235023496 |
23 | 46616083105 |
24 | 140759261932 |
25 | 140759261932 |
26 | 988047871375 |
27 | 3529913699704 |
28 | 11155511184691 |
[0,1,4,13,67,229,229,958,958,7519,27202,27202, 204349,1267231,1267231,10833169,39530983, 125624425,125624425,125624425,1287885892, 4774670293,15235023496,46616083105,140759261932, 140759261932,988047871375,3529913699704, 11155511184691] |