n | a(n) |
---|---|
1 | 9 |
2 | 17 |
3 | 32 |
4 | 61 |
5 | 116 |
6 | 222 |
7 | 424 |
8 | 813 |
9 | 1556 |
10 | 2986 |
11 | 5721 |
12 | 10982 |
13 | 21053 |
14 | 40416 |
15 | 77505 |
16 | 148785 |
17 | 285380 |
18 | 547810 |
19 | 1050876 |
20 | 2017126 |
21 | 3869845 |
22 | 7427671 |
23 | 14250855 |
24 | 27351502 |
25 | 52479500 |
26 | 100719775 |
27 | 193258375 |
28 | 370895324 |
29 | 711682501 |
30 | 1365808847 |
31 | 2620797529 |
[9,17,32,61,116,222,424,813,1556,2986,5721,10982, 21053,40416,77505,148785,285380,547810,1050876, 2017126,3869845,7427671,14250855,27351502, 52479500,100719775,193258375,370895324,711682501, 1365808847,2620797529] |