n | a(n) |
---|---|
1 | 1 |
2 | 2 |
3 | 8 |
4 | 24 |
5 | 71 |
6 | 198 |
7 | 541 |
8 | 1452 |
9 | 3862 |
10 | 10208 |
11 | 26885 |
12 | 70644 |
13 | 185369 |
14 | 485982 |
15 | 1273420 |
16 | 3335640 |
17 | 8735707 |
18 | 22875050 |
19 | 59895221 |
20 | 156819960 |
21 | 410579786 |
22 | 1074943872 |
23 | 2814291433 |
24 | 7367994504 |
25 | 19289795761 |
26 | 50501560538 |
27 | 132215157296 |
28 | 346144350552 |
29 | 906218605007 |
[1,2,8,24,71,198,541,1452,3862,10208,26885,70644, 185369,485982,1273420,3335640,8735707,22875050, 59895221,156819960,410579786,1074943872, 2814291433,7367994504,19289795761,50501560538, 132215157296,346144350552,906218605007] |