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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 23 |
| 3 | 81 |
| 4 | 295 |
| 5 | 1079 |
| 6 | 3836 |
| 7 | 12954 |
| 8 | 41334 |
| 9 | 124956 |
| 10 | 359214 |
| 11 | 985377 |
| 12 | 2587934 |
| 13 | 6528298 |
| 14 | 15865511 |
| 15 | 37249628 |
| 16 | 84702904 |
| 17 | 186968944 |
| 18 | 401441143 |
| 19 | 839947739 |
| 20 | 1715449948 |
| 21 | 3424892827 |
| 22 | 6693385156 |
| 23 | 12820586861 |
| 24 | 24094606746 |
| 25 | 44476144089 |
| 26 | 80712174607 |
[5,23,81,295,1079,3836,12954,41334,124956,359214, 985377,2587934,6528298,15865511,37249628,84702904, 186968944,401441143,839947739,1715449948, 3424892827,6693385156,12820586861,24094606746, 44476144089,80712174607] |