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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 126 |
| 2 | 15752 |
| 3 | 393801 |
| 4 | 246125639 |
| 5 | 30765704917 |
| 6 | 3845713114757 |
| 7 | 480714139345054 |
| 8 | 12017853483626636 |
| 9 | 7511158427266652362 |
| 10 | 938894803408331562046 |
| 11 | 117361850426041445314536 |
| 12 | 14670231303255180664525012 |
[1,126,15752,393801,246125639,30765704917, 3845713114757,480714139345054,12017853483626636, 7511158427266652362,938894803408331562046, 117361850426041445314536, 14670231303255180664525012] |