| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 8 |
| 3 | 19 |
| 4 | 43 |
| 5 | 100 |
| 6 | 236 |
| 7 | 562 |
| 8 | 1354 |
| 9 | 3300 |
| 10 | 8119 |
| 11 | 20136 |
| 12 | 50302 |
| 13 | 126451 |
| 14 | 319628 |
| 15 | 811829 |
| 16 | 2070790 |
| 17 | 5302162 |
| 18 | 13621745 |
| 19 | 35101258 |
| 20 | 90696900 |
| 21 | 234924747 |
| 22 | 609864582 |
| 23 | 1586430423 |
| 24 | 4134442382 |
| 25 | 10793331294 |
| 26 | 28221407514 |
| 27 | 73898377351 |
[3,8,19,43,100,236,562,1354,3300,8119,20136,50302, 126451,319628,811829,2070790,5302162,13621745, 35101258,90696900,234924747,609864582,1586430423, 4134442382,10793331294,28221407514,73898377351] |
