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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 11 |
| 4 | 37 |
| 5 | 103 |
| 6 | 317 |
| 7 | 967 |
| 8 | 2869 |
| 9 | 8639 |
| 10 | 25853 |
| 11 | 77623 |
| 12 | 232997 |
| 13 | 698735 |
| 14 | 2096461 |
| 15 | 6288871 |
| 16 | 18867125 |
| 17 | 56600351 |
| 18 | 169802077 |
| 19 | 509408279 |
| 20 | 1528220741 |
| 21 | 4584666319 |
| 22 | 13753990765 |
| 23 | 41261980487 |
| 24 | 123785957845 |
| 25 | 371357840767 |
| 26 | 1114073555069 |
[1,5,11,37,103,317,967,2869,8639,25853,77623, 232997,698735,2096461,6288871,18867125,56600351, 169802077,509408279,1528220741,4584666319, 13753990765,41261980487,123785957845,371357840767, 1114073555069] |