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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 11 |
| 2 | 83 |
| 3 | 410 |
| 4 | 16799 |
| 5 | 495151 |
| 6 | 8516747 |
| 7 | 55850623 |
| 8 | 309309419 |
| 9 | 1088610631 |
| 10 | 6561497681 |
| 11 | 777210281963 |
| 12 | 12475578306953 |
| 13 | 287734917200239 |
| 14 | 10671842976127147 |
| 15 | 844855135994501953 |
| 16 | 846430303832665873 |
| 17 | 75457260356268267017 |
| 18 | 3551759427031132995079 |
| 19 | 711302288219532928235 |
| 20 | 712163917143684270659 |
[1,11,83,410,16799,495151,8516747,55850623, 309309419,1088610631,6561497681,777210281963, 12475578306953,287734917200239,10671842976127147, 844855135994501953,846430303832665873, 75457260356268267017,3551759427031132995079, 711302288219532928235,712163917143684270659] |