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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 1 |
| 3 | 8 |
| 4 | 137 |
| 5 | 7704 |
| 6 | 1413982 |
| 7 | 855543836 |
| 8 | 1775124241697 |
| 9 | 12985137979651848 |
| 10 | 340909258684048264585 |
| 11 | 32512676857544231506934756 |
| 12 | 11365672344040389664750137465767 |
| 13 | 14668676509227095069116619104786898732 |
| 14 | 70315084528883620836175544247562749711989951 |
[1,1,1,8,137,7704,1413982,855543836,1775124241697, 12985137979651848,340909258684048264585, 32512676857544231506934756, 11365672344040389664750137465767, 14668676509227095069116619104786898732, 70315084528883620836175544247562749711989951] |