n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 2 |
4 | 4 |
5 | 8 |
6 | 17 |
7 | 39 |
8 | 89 |
9 | 210 |
10 | 498 |
11 | 1185 |
12 | 2813 |
13 | 6664 |
14 | 15707 |
15 | 36886 |
16 | 86259 |
17 | 201003 |
18 | 466788 |
19 | 1080825 |
20 | 2495565 |
21 | 5747664 |
22 | 13206253 |
23 | 30276788 |
24 | 69267205 |
25 | 158155198 |
26 | 360422113 |
27 | 819873747 |
28 | 1861732042 |
29 | 4220347570 |
30 | 9551287776 |
[1,1,1,2,4,8,17,39,89,210,498,1185,2813,6664, 15707,36886,86259,201003,466788,1080825,2495565, 5747664,13206253,30276788,69267205,158155198, 360422113,819873747,1861732042,4220347570, 9551287776] |