| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 129 |
| 2 | 2315 |
| 3 | 18571 |
| 4 | 94509 |
| 5 | 358061 |
| 6 | 1103479 |
| 7 | 2920695 |
| 8 | 6880121 |
| 9 | 14782969 |
| 10 | 29487171 |
| 11 | 55318979 |
| 12 | 98580325 |
| 13 | 168162021 |
| 14 | 276272879 |
| 15 | 439294831 |
| 16 | 678774129 |
| 17 | 1022558705 |
| 18 | 1506091771 |
| 19 | 2173871739 |
| 20 | 3081088541 |
| 21 | 4295446429 |
| 22 | 5899183335 |
| 23 | 7991296871 |
| 24 | 10689987049 |
| 25 | 14135325801 |
[1,129,2315,18571,94509,358061,1103479,2920695, 6880121,14782969,29487171,55318979,98580325, 168162021,276272879,439294831,678774129, 1022558705,1506091771,2173871739,3081088541, 4295446429,5899183335,7991296871,10689987049, 14135325801] |