n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 9 |
5 | 23 |
6 | 48 |
7 | 113 |
8 | 254 |
9 | 581 |
10 | 1332 |
11 | 3038 |
12 | 6979 |
13 | 15955 |
14 | 36616 |
15 | 83861 |
16 | 192325 |
17 | 440833 |
18 | 1010769 |
19 | 2317433 |
20 | 5313413 |
21 | 12183136 |
22 | 27934106 |
23 | 64050992 |
24 | 146862260 |
25 | 336745545 |
[1,1,2,5,9,23,48,113,254,581,1332,3038,6979,15955, 36616,83861,192325,440833,1010769,2317433,5313413, 12183136,27934106,64050992,146862260,336745545] |