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| n | a(n) |
|---|---|
| 1 | 104 |
| 2 | 146 |
| 3 | 401 |
| 4 | 896 |
| 5 | 1800 |
| 6 | 3358 |
| 7 | 7680 |
| 8 | 14924 |
| 9 | 32431 |
| 10 | 62992 |
| 11 | 139263 |
| 12 | 269060 |
| 13 | 591945 |
| 14 | 1148020 |
| 15 | 2528065 |
| 16 | 4893596 |
| 17 | 10776857 |
| 18 | 20877196 |
| 19 | 45968189 |
| 20 | 89026604 |
| 21 | 196045769 |
| 22 | 379710316 |
| 23 | 836112021 |
| 24 | 1619399516 |
| 25 | 3565959873 |
| 26 | 6906609340 |
| 27 | 15208409269 |
[104,146,401,896,1800,3358,7680,14924,32431,62992, 139263,269060,591945,1148020,2528065,4893596, 10776857,20877196,45968189,89026604,196045769, 379710316,836112021,1619399516,3565959873, 6906609340,15208409269] |