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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 3 |
| 5 | 5 |
| 6 | 9 |
| 7 | 15 |
| 8 | 26 |
| 9 | 44 |
| 10 | 76 |
| 11 | 131 |
| 12 | 225 |
| 13 | 389 |
| 14 | 670 |
| 15 | 1156 |
| 16 | 1994 |
| 17 | 3439 |
| 18 | 5934 |
| 19 | 10236 |
| 20 | 17661 |
| 21 | 30470 |
| 22 | 52569 |
| 23 | 90699 |
| 24 | 156483 |
| 25 | 269985 |
| 26 | 465811 |
| 27 | 803677 |
| 28 | 1386609 |
| 29 | 2392357 |
| 30 | 4127611 |
| 31 | 7121498 |
| 32 | 12286951 |
| 33 | 21199078 |
| 34 | 36575462 |
| 35 | 63104849 |
| 36 | 108876873 |
| 37 | 187848862 |
| 38 | 324101847 |
[1,1,1,2,3,5,9,15,26,44,76,131,225,389,670,1156, 1994,3439,5934,10236,17661,30470,52569,90699, 156483,269985,465811,803677,1386609,2392357, 4127611,7121498,12286951,21199078,36575462, 63104849,108876873,187848862,324101847] |