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| n | a(n) |
|---|---|
| 1 | 8 |
| 2 | 47 |
| 3 | 260 |
| 4 | 1444 |
| 5 | 8042 |
| 6 | 44783 |
| 7 | 249329 |
| 8 | 1388229 |
| 9 | 7729475 |
| 10 | 43036555 |
| 11 | 239621114 |
| 12 | 1334174859 |
| 13 | 7428487720 |
| 14 | 41360717708 |
| 15 | 230290341396 |
| 16 | 1282222463696 |
| 17 | 7139224494787 |
| 18 | 39750143077200 |
| 19 | 221322900803963 |
| 20 | 1232293084459751 |
[8,47,260,1444,8042,44783,249329,1388229,7729475, 43036555,239621114,1334174859,7428487720, 41360717708,230290341396,1282222463696, 7139224494787,39750143077200,221322900803963, 1232293084459751] |