n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 5 |
5 | 12 |
6 | 37 |
7 | 128 |
8 | 457 |
9 | 1872 |
10 | 8169 |
11 | 37600 |
12 | 188685 |
13 | 990784 |
14 | 5497741 |
15 | 32333824 |
16 | 197920145 |
17 | 1272660224 |
18 | 8541537105 |
19 | 59527313920 |
20 | 432381471509 |
21 | 3252626013184 |
22 | 25340238127989 |
23 | 204354574172160 |
24 | 1699894200469849 |
25 | 14594815769038848 |
26 | 129076687233903673 |
[1,1,1,2,5,12,37,128,457,1872,8169,37600,188685, 990784,5497741,32333824,197920145,1272660224, 8541537105,59527313920,432381471509,3252626013184, 25340238127989,204354574172160,1699894200469849, 14594815769038848,129076687233903673] |