n | a(n) |
---|---|
1 | 3 |
2 | 15 |
3 | 46 |
4 | 161 |
5 | 601 |
6 | 2208 |
7 | 8053 |
8 | 29415 |
9 | 107534 |
10 | 393061 |
11 | 1436589 |
12 | 5250624 |
13 | 19190841 |
14 | 70141747 |
15 | 256364934 |
16 | 937002409 |
17 | 3424702513 |
18 | 12517136672 |
19 | 45749581901 |
20 | 167212702063 |
21 | 611155044830 |
22 | 2233744710845 |
23 | 8164238313221 |
24 | 29839930638080 |
[3,15,46,161,601,2208,8053,29415,107534,393061, 1436589,5250624,19190841,70141747,256364934, 937002409,3424702513,12517136672,45749581901, 167212702063,611155044830,2233744710845, 8164238313221,29839930638080] |