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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 5 |
| 3 | 31 |
| 4 | 289 |
| 5 | 3446 |
| 6 | 50653 |
| 7 | 883883 |
| 8 | 17850625 |
| 9 | 409413666 |
| 10 | 10510100501 |
| 11 | 298523873866 |
| 12 | 9294114390625 |
| 13 | 314715395761089 |
| 14 | 11514990476898413 |
| 15 | 452702917746710142 |
| 16 | 19031147999601100801 |
| 17 | 851888944448164153708 |
[1,5,31,289,3446,50653,883883,17850625,409413666, 10510100501,298523873866,9294114390625, 314715395761089,11514990476898413, 452702917746710142,19031147999601100801, 851888944448164153708] |