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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 11 |
| 4 | 59 |
| 5 | 149 |
| 6 | 806 |
| 7 | 2195 |
| 8 | 11768 |
| 9 | 33417 |
| 10 | 177087 |
| 11 | 514763 |
| 12 | 2701462 |
| 13 | 7959113 |
| 14 | 41470771 |
| 15 | 123166255 |
| 16 | 638542081 |
| 17 | 1905821801 |
| 18 | 9846665639 |
| 19 | 29480427979 |
| 20 | 151961034078 |
| 21 | 455874537477 |
| 22 | 2346202859972 |
| 23 | 7047642531511 |
| 24 | 36233420401775 |
[1,5,11,59,149,806,2195,11768,33417,177087,514763, 2701462,7959113,41470771,123166255,638542081, 1905821801,9846665639,29480427979,151961034078, 455874537477,2346202859972,7047642531511, 36233420401775] |