n | a(n) |
---|---|
0 | 1 |
1 | 1 |
2 | 3 |
3 | 7 |
4 | 19 |
5 | 69 |
6 | 249 |
7 | 1025 |
8 | 4833 |
9 | 21481 |
10 | 126517 |
11 | 615669 |
12 | 4161321 |
13 | 22894537 |
14 | 163938841 |
15 | 1016069027 |
16 | 8491341479 |
17 | 58444280449 |
18 | 508568676159 |
19 | 3894634611571 |
20 | 33778806941777 |
21 | 290707450961639 |
22 | 2713715752910365 |
23 | 26549031384321585 |
24 | 233708327564162305 |
25 | 2519255296395164039 |
26 | 24379835547221372041 |
[1,1,3,7,19,69,249,1025,4833,21481,126517,615669, 4161321,22894537,163938841,1016069027,8491341479, 58444280449,508568676159,3894634611571, 33778806941777,290707450961639,2713715752910365, 26549031384321585,233708327564162305, 2519255296395164039,24379835547221372041] |