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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 92 |
| 3 | 2688 |
| 4 | 127312 |
| 5 | 8850336 |
| 6 | 845380928 |
| 7 | 105911556096 |
| 8 | 16814357324032 |
| 9 | 3294279618252288 |
| 10 | 779927283014454272 |
| 11 | 219346023009485242368 |
| 12 | 72245888404549697916928 |
| 13 | 27535159087648660044718080 |
| 14 | 12019428370649765064698642432 |
| 15 | 5955630440267924458161515003904 |
| 16 | 3323745190699295141008171994251264 |
[1,6,92,2688,127312,8850336,845380928, 105911556096,16814357324032,3294279618252288, 779927283014454272,219346023009485242368, 72245888404549697916928, 27535159087648660044718080, 12019428370649765064698642432, 5955630440267924458161515003904, 3323745190699295141008171994251264] |