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| n | a(n) |
|---|---|
| 5 | 0 |
| 6 | 1 |
| 7 | 4 |
| 8 | 13 |
| 9 | 34 |
| 10 | 80 |
| 11 | 172 |
| 12 | 352 |
| 13 | 682 |
| 14 | 1277 |
| 15 | 2314 |
| 16 | 4103 |
| 17 | 7112 |
| 18 | 12120 |
| 19 | 20302 |
| 20 | 33582 |
| 21 | 54860 |
| 22 | 88699 |
| 23 | 142036 |
| 24 | 225407 |
| 25 | 354938 |
| 26 | 554698 |
| 27 | 861366 |
| 28 | 1328654 |
| 29 | 2038498 |
| 30 | 3108789 |
| 31 | 4718194 |
| 32 | 7122619 |
| 33 | 10705550 |
| 34 | 16012298 |
| 35 | 23852554 |
| 36 | 35374650 |
| 37 | 52262054 |
| 38 | 76898593 |
[0,1,4,13,34,80,172,352,682,1277,2314,4103,7112, 12120,20302,33582,54860,88699,142036,225407, 354938,554698,861366,1328654,2038498,3108789, 4718194,7122619,10705550,16012298,23852554, 35374650,52262054,76898593] |