n | a(n) |
---|---|
0 | 1 |
1 | 2 |
2 | 5 |
3 | 15 |
4 | 49 |
5 | 163 |
6 | 549 |
7 | 1875 |
8 | 6477 |
9 | 22571 |
10 | 79213 |
11 | 279631 |
12 | 991985 |
13 | 3533707 |
14 | 12632909 |
15 | 45301795 |
16 | 162890781 |
17 | 587091795 |
18 | 2120442517 |
19 | 7672891151 |
20 | 27811187377 |
21 | 100956896179 |
22 | 366983328885 |
23 | 1335662387699 |
[1,2,5,15,49,163,549,1875,6477,22571,79213,279631, 991985,3533707,12632909,45301795,162890781, 587091795,2120442517,7672891151,27811187377, 100956896179,366983328885,1335662387699] |