The OEIS is supported by the many generous donors to the OEIS Foundation.
| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 13 |
| 3 | 1113 |
| 4 | 3113 |
| 5 | 2321 |
| 6 | 221311 |
| 7 | 223113 |
| 8 | 222321 |
| 9 | 421311 |
| 10 | 14123113 |
| 11 | 41141223 |
| 12 | 24312213 |
| 13 | 32142321 |
| 14 | 23322114 |
| 15 | 32232114 |
| 16 | 23322114 |
| 17 | 32232114 |
| 18 | 23322114 |
| 19 | 32232114 |
| 20 | 23322114 |
[3,13,1113,3113,2321,221311,223113,222321,421311, 14123113,41141223,24312213,32142321,23322114, 32232114,23322114,32232114,23322114,32232114, 23322114] |