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| n | a(n) |
|---|---|
| 0 | 0 |
| 1 | 1 |
| 2 | 3 |
| 3 | 7 |
| 4 | 6 |
| 5 | 8 |
| 6 | 20 |
| 7 | 21 |
| 8 | 33 |
| 9 | 45 |
| 10 | 68 |
| 11 | 102 |
| 12 | 158 |
| 13 | 247 |
| 14 | 391 |
| 15 | 623 |
| 16 | 998 |
| 17 | 1604 |
| 18 | 2584 |
| 19 | 4169 |
| 20 | 6733 |
| 21 | 10881 |
| 22 | 17592 |
| 23 | 28450 |
| 24 | 46018 |
| 25 | 74443 |
| 26 | 120435 |
| 27 | 194851 |
| 28 | 315258 |
| 29 | 510080 |
| 30 | 825308 |
| 31 | 1335357 |
| 32 | 2160633 |
| 33 | 3495957 |
| 34 | 5656556 |
| 35 | 9152478 |
| 36 | 14808998 |
| 37 | 23961439 |
| 38 | 38770399 |
[0,1,3,7,6,8,20,21,33,45,68,102,158,247,391,623, 998,1604,2584,4169,6733,10881,17592,28450,46018, 74443,120435,194851,315258,510080,825308,1335357, 2160633,3495957,5656556,9152478,14808998,23961439, 38770399] |