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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 1 |
| 2 | 9 |
| 3 | 201 |
| 4 | 9649 |
| 5 | 809201 |
| 6 | 105268089 |
| 7 | 19650225401 |
| 8 | 4982657935329 |
| 9 | 1648151554792801 |
| 10 | 689411371817131369 |
| 11 | 355814217290199455401 |
| 12 | 222111401946937825176209 |
| 13 | 164952387078229730219557201 |
[1,1,9,201,9649,809201,105268089,19650225401, 4982657935329,1648151554792801,689411371817131369, 355814217290199455401,222111401946937825176209, 164952387078229730219557201] |