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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 6 |
| 5 | 10 |
| 6 | 17 |
| 7 | 30 |
| 8 | 53 |
| 9 | 93 |
| 10 | 163 |
| 11 | 286 |
| 12 | 502 |
| 13 | 881 |
| 14 | 1546 |
| 15 | 2713 |
| 16 | 4761 |
| 17 | 8355 |
| 18 | 14662 |
| 19 | 25730 |
| 20 | 45153 |
| 21 | 79238 |
| 22 | 139053 |
| 23 | 244021 |
| 24 | 428227 |
| 25 | 751486 |
| 26 | 1318766 |
| 27 | 2314273 |
| 28 | 4061266 |
| 29 | 7127025 |
| 30 | 12507057 |
| 31 | 21948355 |
| 32 | 38516678 |
| 33 | 67592058 |
| 34 | 118615793 |
| 35 | 208156206 |
| 36 | 365288677 |
| 37 | 641036941 |
[1,1,3,6,10,17,30,53,93,163,286,502,881,1546,2713, 4761,8355,14662,25730,45153,79238,139053,244021, 428227,751486,1318766,2314273,4061266,7127025, 12507057,21948355,38516678,67592058,118615793, 208156206,365288677,641036941] |