n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 6 |
4 | 19 |
5 | 63 |
6 | 215 |
7 | 749 |
8 | 2650 |
9 | 9490 |
10 | 34318 |
11 | 125104 |
12 | 459152 |
13 | 1694914 |
14 | 6287896 |
15 | 23429158 |
16 | 87635243 |
17 | 328917615 |
18 | 1238303243 |
19 | 4674847097 |
20 | 17692789741 |
21 | 67114622451 |
22 | 255120892105 |
23 | 971649360211 |
24 | 3707176155659 |
25 | 14167390221873 |
[0,1,2,6,19,63,215,749,2650,9490,34318,125104, 459152,1694914,6287896,23429158,87635243, 328917615,1238303243,4674847097,17692789741, 67114622451,255120892105,971649360211, 3707176155659,14167390221873] |