n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 14 |
5 | 44 |
6 | 155 |
7 | 605 |
8 | 2584 |
9 | 11956 |
10 | 59461 |
11 | 315841 |
12 | 1782354 |
13 | 10638166 |
14 | 66900149 |
15 | 441811845 |
16 | 3055188944 |
17 | 22065583000 |
18 | 166064430497 |
19 | 1299663352309 |
20 | 10557811907818 |
21 | 88874221415746 |
22 | 774053270905621 |
23 | 6965452960952961 |
[1,1,2,5,14,44,155,605,2584,11956,59461,315841, 1782354,10638166,66900149,441811845,3055188944, 22065583000,166064430497,1299663352309, 10557811907818,88874221415746,774053270905621, 6965452960952961] |