n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 1 |
3 | 3 |
4 | 7 |
5 | 15 |
6 | 35 |
7 | 87 |
8 | 217 |
9 | 547 |
10 | 1417 |
11 | 3735 |
12 | 9911 |
13 | 26513 |
14 | 71581 |
15 | 194681 |
16 | 532481 |
17 | 1464029 |
18 | 4045117 |
19 | 11225159 |
20 | 31268577 |
21 | 87404465 |
22 | 245101771 |
23 | 689323849 |
24 | 1943817227 |
25 | 5494808425 |
26 | 15568077235 |
27 | 44200775239 |
28 | 125739619467 |
[1,1,1,3,7,15,35,87,217,547,1417,3735,9911,26513, 71581,194681,532481,1464029,4045117,11225159, 31268577,87404465,245101771,689323849,1943817227, 5494808425,15568077235,44200775239,125739619467] |