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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 589 |
| 3 | 347509 |
| 4 | 205029721 |
| 5 | 120967187881 |
| 6 | 71370435820069 |
| 7 | 42108436166652829 |
| 8 | 24843905967889349041 |
| 9 | 14657862412618549281361 |
| 10 | 8648113979538976186653949 |
| 11 | 5102372590065583331576548549 |
| 12 | 3010391180024714626653976989961 |
| 13 | 1776125693841991564142514847528441 |
[1,589,347509,205029721,120967187881, 71370435820069,42108436166652829, 24843905967889349041,14657862412618549281361, 8648113979538976186653949, 5102372590065583331576548549, 3010391180024714626653976989961, 1776125693841991564142514847528441] |