n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 8 |
3 | 22 |
4 | 65 |
5 | 203 |
6 | 647 |
7 | 2053 |
8 | 6423 |
9 | 19811 |
10 | 60490 |
11 | 183750 |
12 | 557551 |
13 | 1693921 |
14 | 5157224 |
15 | 15731043 |
16 | 48041589 |
17 | 146785994 |
18 | 448475954 |
19 | 1369853581 |
20 | 4182850121 |
21 | 12769287055 |
22 | 38976737437 |
23 | 118967979141 |
24 | 363132913719 |
25 | 1108463577238 |
26 | 3383732698880 |
27 | 10329587789993 |
[1,3,8,22,65,203,647,2053,6423,19811,60490,183750, 557551,1693921,5157224,15731043,48041589, 146785994,448475954,1369853581,4182850121, 12769287055,38976737437,118967979141,363132913719, 1108463577238,3383732698880,10329587789993] |