n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 6 |
5 | 14 |
6 | 30 |
7 | 65 |
8 | 144 |
9 | 321 |
10 | 720 |
11 | 1626 |
12 | 3694 |
13 | 8428 |
14 | 19305 |
15 | 44371 |
16 | 102291 |
17 | 236450 |
18 | 547868 |
19 | 1272148 |
20 | 2959613 |
21 | 6897450 |
22 | 16100184 |
23 | 37635909 |
24 | 88095027 |
25 | 206458158 |
26 | 484399704 |
27 | 1137707979 |
28 | 2674734202 |
29 | 6293966627 |
30 | 14823002101 |
31 | 34937537185 |
32 | 82408390392 |
33 | 194515481823 |
[1,1,1,3,6,14,30,65,144,321,720,1626,3694,8428, 19305,44371,102291,236450,547868,1272148,2959613, 6897450,16100184,37635909,88095027,206458158, 484399704,1137707979,2674734202,6293966627, 14823002101,34937537185,82408390392,194515481823] |