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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 7 |
| 3 | 225 |
| 4 | 31041 |
| 5 | 17698273 |
| 6 | 41014759873 |
| 7 | 383214694567809 |
| 8 | 14378402336340492033 |
| 9 | 2162169920997910948019713 |
| 10 | 1301828396408136687071569640449 |
| 11 | 3136821919822089791220365613645953025 |
| 12 | 30240714417270288646830264781681630189187073 |
[1,1,7,225,31041,17698273,41014759873, 383214694567809,14378402336340492033, 2162169920997910948019713, 1301828396408136687071569640449, 3136821919822089791220365613645953025, 30240714417270288646830264781681630189187073] |