| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 2 |
| 3 | 3 |
| 4 | 6 |
| 5 | 3 |
| 6 | 3 |
| 7 | 7 |
| 8 | 42 |
| 9 | 7 |
| 10 | 73 |
| 11 | 39 |
| 12 | 288 |
| 13 | 27 |
| 14 | 27 |
| 15 | 135 |
| 16 | 1974 |
| 17 | 1419 |
| 18 | 861 |
| 19 | 2787 |
| 20 | 13530 |
| 21 | 7297 |
| 22 | 5247 |
| 23 | 33963 |
| 24 | 92736 |
| 25 | 100033 |
| 26 | 161857 |
| 27 | 116395 |
[2,2,3,6,3,3,7,42,7,73,39,288,27,27,135,1974,1419, 861,2787,13530,7297,5247,33963,92736,100033, 161857,116395] |