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| n | a(n) |
|---|---|
| 1 | 2 |
| 2 | 4 |
| 3 | 6 |
| 4 | 10 |
| 5 | 12 |
| 6 | 14 |
| 7 | 17 |
| 8 | 41 |
| 9 | 69 |
| 10 | 141 |
| 11 | 170 |
| 12 | 188 |
| 13 | 204 |
| 14 | 233 |
| 15 | 306 |
| 16 | 555 |
| 17 | 743 |
| 18 | 1908 |
| 19 | 2006 |
| 20 | 2140 |
| 21 | 2772 |
| 22 | 8105 |
| 23 | 15170 |
| 24 | 40038 |
| 25 | 41908 |
| 26 | 48604 |
| 27 | 51652 |
| 28 | 54038 |
| 29 | 56781 |
| 30 | 129051 |
| 31 | 283342 |
[2,4,6,10,12,14,17,41,69,141,170,188,204,233,306, 555,743,1908,2006,2140,2772,8105,15170,40038, 41908,48604,51652,54038,56781,129051,283342] |