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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 3 |
| 4 | 5 |
| 5 | 11 |
| 6 | 27 |
| 7 | 61 |
| 8 | 145 |
| 9 | 345 |
| 10 | 839 |
| 11 | 2033 |
| 12 | 4983 |
| 13 | 12259 |
| 14 | 30313 |
| 15 | 75297 |
| 16 | 187649 |
| 17 | 469211 |
| 18 | 1176525 |
| 19 | 2957347 |
| 20 | 7450003 |
| 21 | 18804669 |
| 22 | 47548049 |
| 23 | 120417569 |
| 24 | 305401503 |
| 25 | 775573657 |
| 26 | 1971961879 |
| 27 | 5019461283 |
| 28 | 12789790601 |
| 29 | 32620177385 |
| 30 | 83271844905 |
| 31 | 212752366315 |
| 32 | 543992364541 |
[1,1,1,3,5,11,27,61,145,345,839,2033,4983,12259, 30313,75297,187649,469211,1176525,2957347,7450003, 18804669,47548049,120417569,305401503,775573657, 1971961879,5019461283,12789790601,32620177385, 83271844905,212752366315,543992364541] |