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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 3 |
| 2 | 5 |
| 3 | 9 |
| 4 | 17 |
| 5 | 30 |
| 6 | 52 |
| 7 | 91 |
| 8 | 160 |
| 9 | 281 |
| 10 | 493 |
| 11 | 865 |
| 12 | 1518 |
| 13 | 2664 |
| 14 | 4675 |
| 15 | 8204 |
| 16 | 14397 |
| 17 | 25265 |
| 18 | 44337 |
| 19 | 77805 |
| 20 | 136534 |
| 21 | 239592 |
| 22 | 420441 |
| 23 | 737798 |
| 24 | 1294700 |
| 25 | 2271961 |
| 26 | 3986877 |
| 27 | 6996242 |
| 28 | 12277127 |
| 29 | 21544115 |
| 30 | 37805987 |
| 31 | 66342603 |
| 32 | 116419152 |
| 33 | 204294349 |
| 34 | 358499270 |
| 35 | 629100742 |
[1,3,5,9,17,30,52,91,160,281,493,865,1518,2664, 4675,8204,14397,25265,44337,77805,136534,239592, 420441,737798,1294700,2271961,3986877,6996242, 12277127,21544115,37805987,66342603,116419152, 204294349,358499270,629100742] |