n | a(n) |
---|---|
0 | 0 |
1 | 1 |
2 | 2 |
3 | 5 |
4 | 13 |
5 | 34 |
6 | 89 |
7 | 232 |
8 | 605 |
9 | 1578 |
10 | 4116 |
11 | 10736 |
12 | 28003 |
13 | 73041 |
14 | 190515 |
15 | 496926 |
16 | 1296147 |
17 | 3380779 |
18 | 8818187 |
19 | 23000741 |
20 | 59993521 |
21 | 156482896 |
22 | 408159020 |
23 | 1064613385 |
24 | 2776862948 |
25 | 7242974718 |
26 | 18892067685 |
27 | 49276745441 |
28 | 128530009618 |
[0,1,2,5,13,34,89,232,605,1578,4116,10736,28003, 73041,190515,496926,1296147,3380779,8818187, 23000741,59993521,156482896,408159020,1064613385, 2776862948,7242974718,18892067685,49276745441, 128530009618] |