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| n | a(n) |
|---|---|
| 11 | 1 |
| 12 | -310968905 |
| 13 | 116041991914472611 |
| 14 | -41905685236388916561230885 |
| 15 | 15214999201976941569510489219969931 |
| 16 | -5519247137793116688209551072778853951561365 |
| 17 | 2002409531513525089470147425061900304433199288073771 |
[1,-310968905,116041991914472611, -41905685236388916561230885, 15214999201976941569510489219969931, -5519247137793116688209551072778853951561365, 20024095315135250894701474250619003044331992880737\ 71] |