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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 2 |
| 3 | 7 |
| 4 | 11 |
| 5 | 13 |
| 6 | 5639 |
| 7 | 11262809 |
| 8 | 1538763335 |
| 9 | 126460946201 |
| 10 | 1276182285427369 |
| 11 | 14786648025753749026871 |
| 12 | 105410978030726984449289 |
| 13 | 1498381179129960066289070257961 |
| 14 | 107744062788861651804382809216696729188191 |
| 15 | 2525173635632697805707745894621283442852191 |
[0,2,7,11,13,5639,11262809,1538763335, 126460946201,1276182285427369, 14786648025753749026871,105410978030726984449289, 1498381179129960066289070257961, 107744062788861651804382809216696729188191, 2525173635632697805707745894621283442852191] |