n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 6 |
6 | 13 |
7 | 24 |
8 | 45 |
9 | 84 |
10 | 160 |
11 | 300 |
12 | 565 |
13 | 1064 |
14 | 2005 |
15 | 3774 |
16 | 7108 |
17 | 13386 |
18 | 25209 |
19 | 47472 |
20 | 89401 |
21 | 168360 |
22 | 317056 |
23 | 597080 |
24 | 1124425 |
25 | 2117520 |
26 | 3987721 |
27 | 7509690 |
28 | 14142276 |
29 | 26632782 |
30 | 50154949 |
31 | 94451976 |
32 | 177872293 |
[1,0,1,2,4,6,13,24,45,84,160,300,565,1064,2005, 3774,7108,13386,25209,47472,89401,168360,317056, 597080,1124425,2117520,3987721,7509690,14142276, 26632782,50154949,94451976,177872293] |