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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 2 |
| 3 | 5 |
| 4 | 11 |
| 5 | 25 |
| 6 | 57 |
| 7 | 129 |
| 8 | 292 |
| 9 | 662 |
| 10 | 1500 |
| 11 | 3398 |
| 12 | 7699 |
| 13 | 17443 |
| 14 | 39519 |
| 15 | 89536 |
| 16 | 202855 |
| 17 | 459593 |
| 18 | 1041267 |
| 19 | 2359122 |
| 20 | 5344889 |
| 21 | 12109524 |
| 22 | 27435660 |
| 23 | 62158961 |
| 24 | 140828999 |
| 25 | 319065932 |
| 26 | 722884274 |
| 27 | 1637785870 |
| 28 | 3710611298 |
| 29 | 8406859805 |
| 30 | 19046805534 |
| 31 | 43152950024 |
| 32 | 97768473163 |
[1,1,2,5,11,25,57,129,292,662,1500,3398,7699, 17443,39519,89536,202855,459593,1041267,2359122, 5344889,12109524,27435660,62158961,140828999, 319065932,722884274,1637785870,3710611298, 8406859805,19046805534,43152950024,97768473163] |