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A166689 as a simple table
| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 37 |
| 2 | 1332 |
| 3 | 47952 |
| 4 | 1726272 |
| 5 | 62145792 |
| 6 | 2237248512 |
| 7 | 80540946432 |
| 8 | 2899474071552 |
| 9 | 104381066575872 |
| 10 | 3757718396731392 |
| 11 | 135277862282330112 |
| 12 | 4870003042163883366 |
| 13 | 175320109517899777200 |
| 14 | 6311523942644391116730 |
[1,37,1332,47952,1726272,62145792,2237248512, 80540946432,2899474071552,104381066575872, 3757718396731392,135277862282330112, 4870003042163883366,175320109517899777200, 6311523942644391116730] |