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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 11 |
| 3 | 181 |
| 4 | 4031 |
| 5 | 114001 |
| 6 | 3917771 |
| 7 | 158531941 |
| 8 | 7380184511 |
| 9 | 388385146081 |
| 10 | 22791211333451 |
| 11 | 1475182111403221 |
| 12 | 104384110708795391 |
| 13 | 8015356365346614961 |
| 14 | 663741406196190241931 |
| 15 | 58957686544170035607301 |
[1,11,181,4031,114001,3917771,158531941, 7380184511,388385146081,22791211333451, 1475182111403221,104384110708795391, 8015356365346614961,663741406196190241931, 58957686544170035607301] |