n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 9 |
6 | 17 |
7 | 38 |
8 | 89 |
9 | 213 |
10 | 480 |
11 | 1151 |
12 | 2810 |
13 | 6978 |
14 | 16497 |
15 | 40731 |
16 | 101680 |
17 | 256491 |
18 | 623916 |
19 | 1568966 |
20 | 3972773 |
21 | 10130647 |
22 | 25044032 |
23 | 63573638 |
24 | 162478685 |
25 | 417322917 |
26 | 1049096179 |
27 | 2687278965 |
28 | 6917001254 |
29 | 17882746627 |
30 | 45391766669 |
31 | 116995255065 |
32 | 302689722551 |
[1,1,1,2,4,9,17,38,89,213,480,1151,2810,6978, 16497,40731,101680,256491,623916,1568966,3972773, 10130647,25044032,63573638,162478685,417322917, 1049096179,2687278965,6917001254,17882746627, 45391766669,116995255065,302689722551] |