n | a(n) |
---|---|
0 | 0 |
1 | 0 |
2 | 1 |
3 | 3 |
4 | 11 |
5 | 44 |
6 | 185 |
7 | 805 |
8 | 3552 |
9 | 15671 |
10 | 68827 |
11 | 301108 |
12 | 1314553 |
13 | 5735237 |
14 | 25024104 |
15 | 109216135 |
16 | 476775195 |
17 | 2081568940 |
18 | 9088283129 |
19 | 39679791093 |
20 | 173240442512 |
21 | 756351086215 |
22 | 3302134987931 |
23 | 14416689863220 |
24 | 62941426366169 |
[0,0,1,3,11,44,185,805,3552,15671,68827,301108, 1314553,5735237,25024104,109216135,476775195, 2081568940,9088283129,39679791093,173240442512, 756351086215,3302134987931,14416689863220, 62941426366169] |