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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 1 |
| 4 | 1 |
| 5 | 2 |
| 6 | 2 |
| 7 | 4 |
| 8 | 7 |
| 9 | 11 |
| 10 | 21 |
| 11 | 36 |
| 12 | 72 |
| 13 | 131 |
| 14 | 250 |
| 15 | 479 |
| 16 | 924 |
| 17 | 1832 |
| 18 | 3553 |
| 19 | 7039 |
| 20 | 13952 |
| 21 | 27720 |
| 22 | 55482 |
| 23 | 111199 |
| 24 | 223683 |
| 25 | 451416 |
| 26 | 912333 |
| 27 | 1850179 |
| 28 | 3758123 |
| 29 | 7652318 |
| 30 | 15609910 |
| 31 | 31896318 |
| 32 | 65290662 |
| 33 | 133841148 |
| 34 | 274787842 |
| 35 | 564923951 |
[1,1,1,1,2,2,4,7,11,21,36,72,131,250,479,924,1832, 3553,7039,13952,27720,55482,111199,223683,451416, 912333,1850179,3758123,7652318,15609910,31896318, 65290662,133841148,274787842,564923951] |