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| n | a(n) |
|---|---|
| 1 | 6 |
| 2 | 39 |
| 3 | 47 |
| 4 | 120 |
| 5 | 446 |
| 6 | 1202 |
| 7 | 3822 |
| 8 | 11428 |
| 9 | 35540 |
| 10 | 119334 |
| 11 | 350064 |
| 12 | 1176852 |
| 13 | 3642784 |
| 14 | 10937680 |
| 15 | 36354323 |
| 16 | 110544260 |
| 17 | 342643258 |
| 18 | 1103393347 |
| 19 | 3372356997 |
| 20 | 10609585314 |
| 21 | 33372515121 |
| 22 | 103547161107 |
| 23 | 325451014192 |
| 24 | 1015953932945 |
| 25 | 3176715059861 |
[6,39,47,120,446,1202,3822,11428,35540,119334, 350064,1176852,3642784,10937680,36354323, 110544260,342643258,1103393347,3372356997, 10609585314,33372515121,103547161107,325451014192, 1015953932945,3176715059861] |