n | a(n) |
---|---|
1 | 1 |
2 | 1 |
3 | 3 |
4 | 9 |
5 | 35 |
6 | 137 |
7 | 574 |
8 | 2431 |
9 | 10534 |
10 | 46123 |
11 | 204343 |
12 | 912967 |
13 | 4111375 |
14 | 18637303 |
15 | 84988775 |
16 | 389589095 |
17 | 1794280695 |
18 | 8298536715 |
19 | 38527147681 |
20 | 179487103411 |
21 | 838820394913 |
22 | 3931498654243 |
23 | 18475619837816 |
24 | 87036536948489 |
25 | 410947150379120 |
26 | 1944378509186237 |
[1,1,3,9,35,137,574,2431,10534,46123,204343, 912967,4111375,18637303,84988775,389589095, 1794280695,8298536715,38527147681,179487103411, 838820394913,3931498654243,18475619837816, 87036536948489,410947150379120,1944378509186237] |