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| n | a(n) |
|---|---|
| 1 | 15 |
| 2 | 232 |
| 3 | 1111 |
| 4 | 1131 |
| 5 | 3171 |
| 6 | 7112 |
| 7 | 8571 |
| 8 | 11110 |
| 9 | 11371 |
| 10 | 17119 |
| 11 | 22564 |
| 12 | 31291 |
| 13 | 37127 |
| 14 | 53159 |
| 15 | 131131 |
| 16 | 190911 |
| 17 | 317169 |
| 18 | 1283122 |
| 19 | 1712914 |
| 20 | 3141133 |
| 21 | 5131120 |
| 22 | 11101112 |
| 23 | 12711811 |
| 24 | 14713491 |
| 25 | 19090911 |
| 26 | 19114912 |
| 27 | 31311891 |
| 28 | 35911069 |
| 29 | 71119711 |
| 30 | 99119863 |
| 31 | 171111171 |
| 32 | 233451720 |
[15,232,1111,1131,3171,7112,8571,11110,11371, 17119,22564,31291,37127,53159,131131,190911, 317169,1283122,1712914,3141133,5131120,11101112, 12711811,14713491,19090911,19114912,31311891, 35911069,71119711,99119863,171111171,233451720] |