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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 13 |
| 3 | 113 |
| 4 | 0 |
| 5 | 11113 |
| 6 | 113111 |
| 7 | 0 |
| 8 | 11111131 |
| 9 | 111111113 |
| 10 | 0 |
| 11 | 11111111113 |
| 12 | 111113111111 |
| 13 | 0 |
| 14 | 31111111111111 |
| 15 | 0 |
| 16 | 0 |
| 17 | 11111111113111111 |
| 18 | 111111111111111131 |
| 19 | 0 |
| 20 | 11111111111111111131 |
| 21 | 131111111111111111111 |
| 22 | 0 |
| 23 | 11111111111111111311111 |
[3,13,113,0,11113,113111,0,11111131,111111113,0, 11111111113,111113111111,0,31111111111111,0,0, 11111111113111111,111111111111111131,0, 11111111111111111131,131111111111111111111,0, 11111111111111111311111] |