n | a(n) |
---|---|
0 | 1 |
1 | 0 |
2 | 1 |
3 | 1 |
4 | 3 |
5 | 4 |
6 | 10 |
7 | 17 |
8 | 39 |
9 | 77 |
10 | 176 |
11 | 381 |
12 | 891 |
13 | 2057 |
14 | 4941 |
15 | 11915 |
16 | 29391 |
17 | 73058 |
18 | 184236 |
19 | 468330 |
20 | 1202349 |
21 | 3108760 |
22 | 8097518 |
23 | 21218776 |
24 | 55925742 |
25 | 148146312 |
26 | 394300662 |
27 | 1053929982 |
28 | 2828250002 |
29 | 7617271738 |
30 | 20584886435 |
31 | 55802753243 |
[1,0,1,1,3,4,10,17,39,77,176,381,891,2057,4941, 11915,29391,73058,184236,468330,1202349,3108760, 8097518,21218776,55925742,148146312,394300662, 1053929982,2828250002,7617271738,20584886435, 55802753243] |