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| n | a(n) |
|---|---|
| 2 | 89 |
| 3 | 1823 |
| 4 | 20809 |
| 5 | 73133 |
| 6 | 989647 |
| 7 | 3250469 |
| 8 | 9065867 |
| 9 | 35677501 |
| 10 | 101341613 |
| 11 | 1383423311 |
| 12 | 11312238283 |
| 13 | 19201563659 |
| 14 | 132932904029 |
| 15 | 534956098463 |
| 16 | 925195153703 |
| 17 | 20151469541389 |
| 18 | 20151469541389 |
| 19 | 102573904861013 |
[89,1823,20809,73133,989647,3250469,9065867, 35677501,101341613,1383423311,11312238283, 19201563659,132932904029,534956098463, 925195153703,20151469541389,20151469541389, 102573904861013] |