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| n | a(n) |
|---|---|
| 0 | 1437 |
| 1 | 18915 |
| 2 | 170799 |
| 3 | 1224231 |
| 4 | 7577943 |
| 5 | 42506295 |
| 6 | 222662391 |
| 7 | 1110797943 |
| 8 | 5346791799 |
| 9 | 25055240055 |
| 10 | 115015961463 |
| 11 | 519520043895 |
| 12 | 2316518945655 |
| 13 | 10221182047095 |
| 14 | 44708102116215 |
| 15 | 194132294964087 |
| 16 | 837742493569911 |
| 17 | 3595852736893815 |
[1437,18915,170799,1224231,7577943,42506295, 222662391,1110797943,5346791799,25055240055, 115015961463,519520043895,2316518945655, 10221182047095,44708102116215,194132294964087, 837742493569911,3595852736893815] |