n | a(n) |
---|---|
0 | 1 |
1 | 3 |
2 | 9 |
3 | 30 |
4 | 109 |
5 | 418 |
6 | 1650 |
7 | 6604 |
8 | 26589 |
9 | 107274 |
10 | 432934 |
11 | 1746484 |
12 | 7040626 |
13 | 28362324 |
14 | 114175812 |
15 | 459344920 |
16 | 1847008989 |
17 | 7423262554 |
18 | 29822432862 |
19 | 119766845860 |
20 | 480833598054 |
21 | 1929896415484 |
22 | 7744047734652 |
23 | 31067665113640 |
24 | 124613703290994 |
25 | 499744683756868 |
[1,3,9,30,109,418,1650,6604,26589,107274,432934, 1746484,7040626,28362324,114175812,459344920, 1847008989,7423262554,29822432862,119766845860, 480833598054,1929896415484,7744047734652, 31067665113640,124613703290994,499744683756868] |