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| n | a(n) |
|---|---|
| 1 | 3 |
| 2 | 6 |
| 3 | 36 |
| 4 | 66 |
| 5 | 666 |
| 6 | 22366 |
| 7 | 333336 |
| 8 | 23232336 |
| 9 | 336662326 |
| 10 | 2232222336 |
| 11 | 3263633236 |
| 12 | 6266233326 |
| 13 | 262322266326 |
| 14 | 266633626626 |
| 15 | 2263263223266 |
| 16 | 36226633633326 |
| 17 | 66333362366236266 |
| 18 | 3236622262232626626666 |
| 19 | 3322222636222323322336 |
| 20 | 2332636666226262326336266 |
[3,6,36,66,666,22366,333336,23232336,336662326, 2232222336,3263633236,6266233326,262322266326, 266633626626,2263263223266,36226633633326, 66333362366236266,3236622262232626626666, 3322222636222323322336,2332636666226262326336266] |