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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 8 |
| 4 | 19 |
| 5 | 28 |
| 6 | 58 |
| 7 | 119 |
| 8 | 219 |
| 9 | 395 |
| 10 | 776 |
| 11 | 1529 |
| 12 | 2826 |
| 13 | 5300 |
| 14 | 10299 |
| 15 | 19763 |
| 16 | 37051 |
| 17 | 70380 |
| 18 | 135411 |
| 19 | 257788 |
| 20 | 487412 |
| 21 | 929135 |
| 22 | 1776855 |
| 23 | 3377845 |
| 24 | 6414026 |
| 25 | 12229725 |
| 26 | 23320560 |
| 27 | 44346952 |
| 28 | 84364697 |
| 29 | 160777089 |
| 30 | 306229857 |
| 31 | 582642042 |
| 32 | 1109154715 |
| 33 | 2112783972 |
[1,5,8,19,28,58,119,219,395,776,1529,2826,5300, 10299,19763,37051,70380,135411,257788,487412, 929135,1776855,3377845,6414026,12229725,23320560, 44346952,84364697,160777089,306229857,582642042, 1109154715,2112783972] |