n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 10 |
3 | 34 |
4 | 117 |
5 | 407 |
6 | 1429 |
7 | 5055 |
8 | 17986 |
9 | 64278 |
10 | 230473 |
11 | 828391 |
12 | 2982825 |
13 | 10754459 |
14 | 38811802 |
15 | 140165322 |
16 | 506449789 |
17 | 1830590295 |
18 | 6618524221 |
19 | 23933966743 |
20 | 86562282258 |
21 | 313102489406 |
22 | 1132598701585 |
23 | 4097213146599 |
24 | 14822370816337 |
25 | 53623952036787 |
[1,3,10,34,117,407,1429,5055,17986,64278,230473, 828391,2982825,10754459,38811802,140165322, 506449789,1830590295,6618524221,23933966743, 86562282258,313102489406,1132598701585, 4097213146599,14822370816337,53623952036787] |