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| n | a(n) |
|---|---|
| 1 | 5 |
| 2 | 151 |
| 3 | 31513 |
| 4 | 3315133 |
| 5 | 11331513311 |
| 6 | 191133151331191 |
| 7 | 9919113315133119199 |
| 8 | 39991911331513311919993 |
| 9 | 353999191133151331191999353 |
| 10 | 13539991911331513311919993531 |
| 11 | 741353999191133151331191999353147 |
[5,151,31513,3315133,11331513311,191133151331191, 9919113315133119199,39991911331513311919993, 353999191133151331191999353, 13539991911331513311919993531, 741353999191133151331191999353147] |