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| n | a(n) |
|---|---|
| 12 | 1 |
| 13 | 317733228541 |
| 14 | 90858964067210376612667 |
| 15 | 25696504083440779881815469635549047 |
| 16 | 7258558056330718241144285557911444544132154908 |
| 17 | 2050065905416034207242060732309202881550943087590159038828 |
| 18 | 579000252913277034724666671128579290474420179812795955722564434314244 |
[1,317733228541,90858964067210376612667, 25696504083440779881815469635549047, 7258558056330718241144285557911444544132154908, 20500659054160342072420607323092028815509430875901\ 59038828, 57900025291327703472466667112857929047442017981279\ 5955722564434314244] |