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| n | a(n) |
|---|---|
| 1 | 0 |
| 2 | 8193 |
| 3 | 1223799 |
| 4 | 756450105 |
| 5 | 400233701367 |
| 6 | 218117038953009 |
| 7 | 117863748242661711 |
| 8 | 63824360296979648967 |
| 9 | 34546668873829672101987 |
| 10 | 18700870126913632045893531 |
| 11 | 10123031708751736005223316745 |
[0,8193,1223799,756450105,400233701367, 218117038953009,117863748242661711, 63824360296979648967,34546668873829672101987, 18700870126913632045893531, 10123031708751736005223316745] |