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| n | a(n) |
|---|---|
| 1 | 13 |
| 2 | 113 |
| 3 | 6113 |
| 4 | 33113 |
| 5 | 93113 |
| 6 | 123113 |
| 7 | 18237113 |
| 8 | 644312113 |
| 9 | 749676113 |
| 10 | 1222457113 |
| 11 | 1346384113 |
| 12 | 2343264113 |
| 13 | 3282836113 |
| 14 | 3959424113 |
| 15 | 4412442113 |
| 16 | 6241338113 |
| 17 | 8932217113 |
| 18 | 9165131113 |
| 19 | 12165131113 |
| 20 | 14198291113 |
| 21 | 16224432113 |
| 22 | 26199212113 |
| 23 | 31259424113 |
| 24 | 38785631113 |
| 25 | 39232638113 |
[13,113,6113,33113,93113,123113,18237113, 644312113,749676113,1222457113,1346384113, 2343264113,3282836113,3959424113,4412442113, 6241338113,8932217113,9165131113,12165131113, 14198291113,16224432113,26199212113,31259424113, 38785631113,39232638113] |