n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 14 |
6 | 46 |
7 | 224 |
8 | 1024 |
9 | 6320 |
10 | 36976 |
11 | 275792 |
12 | 1965664 |
13 | 17180144 |
14 | 144361456 |
15 | 1446351104 |
16 | 13997185024 |
17 | 158116017920 |
18 | 1731678144256 |
19 | 21771730437632 |
20 | 266182076161024 |
21 | 3686171162253824 |
22 | 49763143319190016 |
23 | 752594181757712384 |
24 | 11118629668610842624 |
[1,1,1,2,4,14,46,224,1024,6320,36976,275792, 1965664,17180144,144361456,1446351104,13997185024, 158116017920,1731678144256,21771730437632, 266182076161024,3686171162253824, 49763143319190016,752594181757712384, 11118629668610842624] |