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| n | a(n) |
|---|---|
| 2 | 1 |
| 3 | 1676 |
| 4 | 183521 |
| 5 | 20842802 |
| 6 | 3061629439 |
| 7 | 418172485806 |
| 8 | 56203566442908 |
| 9 | 7621726574570613 |
| 10 | 1033232532941136255 |
| 11 | 139934009951521872490 |
| 12 | 18955155770535463735959 |
| 13 | 2567688102114635009977537 |
| 14 | 347811042296785583958285788 |
| 15 | 47113523803568895604053871759 |
| 16 | 6381875340326645360658645942215 |
[1,1676,183521,20842802,3061629439,418172485806, 56203566442908,7621726574570613, 1033232532941136255,139934009951521872490, 18955155770535463735959,2567688102114635009977537, 347811042296785583958285788, 47113523803568895604053871759, 6381875340326645360658645942215] |