n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 11 |
5 | 27 |
6 | 65 |
7 | 164 |
8 | 417 |
9 | 1068 |
10 | 2756 |
11 | 7148 |
12 | 18614 |
13 | 48639 |
14 | 127464 |
15 | 334865 |
16 | 881658 |
17 | 2325751 |
18 | 6145597 |
19 | 16263867 |
20 | 43099805 |
21 | 114356612 |
22 | 303761261 |
23 | 807692035 |
24 | 2149632062 |
25 | 5726042116 |
26 | 15264691108 |
27 | 40722913455 |
28 | 108713644517 |
[1,1,2,5,11,27,65,164,417,1068,2756,7148,18614, 48639,127464,334865,881658,2325751,6145597, 16263867,43099805,114356612,303761261,807692035, 2149632062,5726042116,15264691108,40722913455, 108713644517] |