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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 3 |
| 3 | 48 |
| 4 | 3271 |
| 5 | 575163 |
| 6 | 185377116 |
| 7 | 93039467356 |
| 8 | 66505075585875 |
| 9 | 63970743282062646 |
| 10 | 79580632411431634441 |
| 11 | 124299284968805234137968 |
| 12 | 238188439678208173206500760 |
| 13 | 549611050835556942751087049225 |
| 14 | 1503700734638162443238902233252144 |
| 15 | 4814751647416985610768723994195186728 |
| 16 | 17841762828286483988438913318683740082187 |
| 17 | 75777421917902616009655480827109144353730842 |
[1,3,48,3271,575163,185377116,93039467356, 66505075585875,63970743282062646, 79580632411431634441,124299284968805234137968, 238188439678208173206500760, 549611050835556942751087049225, 1503700734638162443238902233252144, 4814751647416985610768723994195186728, 17841762828286483988438913318683740082187, 75777421917902616009655480827109144353730842] |