n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 12 |
4 | 35 |
5 | 116 |
6 | 411 |
7 | 1482 |
8 | 5333 |
9 | 19030 |
10 | 67265 |
11 | 235704 |
12 | 819863 |
13 | 2834600 |
14 | 9752951 |
15 | 33428054 |
16 | 114228713 |
17 | 389419114 |
18 | 1325155261 |
19 | 4503031332 |
20 | 15285291851 |
21 | 51842203804 |
22 | 175719341971 |
23 | 595316455842 |
24 | 2016131645245 |
25 | 6826076021310 |
[1,2,5,12,35,116,411,1482,5333,19030,67265,235704, 819863,2834600,9752951,33428054,114228713, 389419114,1325155261,4503031332,15285291851, 51842203804,175719341971,595316455842, 2016131645245,6826076021310] |