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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 5 |
| 3 | 29 |
| 4 | 47 |
| 5 | 137 |
| 6 | 473 |
| 7 | 836 |
| 8 | 2109 |
| 9 | 6105 |
| 10 | 13157 |
| 11 | 29710 |
| 12 | 79848 |
| 13 | 188417 |
| 14 | 434271 |
| 15 | 1083668 |
| 16 | 2642078 |
| 17 | 6258979 |
| 18 | 15110414 |
| 19 | 36879475 |
| 20 | 88992860 |
| 21 | 213051063 |
| 22 | 516545526 |
| 23 | 1254485401 |
| 24 | 3011010117 |
| 25 | 7264255595 |
| 26 | 17633081795 |
| 27 | 42495939909 |
| 28 | 102388465505 |
[5,5,29,47,137,473,836,2109,6105,13157,29710, 79848,188417,434271,1083668,2642078,6258979, 15110414,36879475,88992860,213051063,516545526, 1254485401,3011010117,7264255595,17633081795, 42495939909,102388465505] |