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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 1 |
| 3 | 2 |
| 4 | 5 |
| 5 | 11 |
| 6 | 23 |
| 7 | 49 |
| 8 | 105 |
| 9 | 225 |
| 10 | 485 |
| 11 | 1045 |
| 12 | 2252 |
| 13 | 4852 |
| 14 | 10452 |
| 15 | 22517 |
| 16 | 48510 |
| 17 | 104508 |
| 18 | 225153 |
| 19 | 485075 |
| 20 | 1045058 |
| 21 | 2251505 |
| 22 | 4850716 |
| 23 | 10450546 |
| 24 | 22515012 |
| 25 | 48507117 |
| 26 | 104505409 |
| 27 | 225150073 |
| 28 | 485071123 |
| 29 | 1045054049 |
| 30 | 2251500692 |
[1,1,2,5,11,23,49,105,225,485,1045,2252,4852, 10452,22517,48510,104508,225153,485075,1045058, 2251505,4850716,10450546,22515012,48507117, 104505409,225150073,485071123,1045054049, 2251500692] |