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| n | a(n) |
|---|---|
| 1 | 1 |
| 2 | 17 |
| 3 | 18 |
| 4 | 274 |
| 5 | 275 |
| 6 | 1571 |
| 7 | 1572 |
| 8 | 5668 |
| 9 | 5669 |
| 10 | 15669 |
| 11 | 15670 |
| 12 | 36406 |
| 13 | 36407 |
| 14 | 74823 |
| 15 | 74824 |
| 16 | 140360 |
| 17 | 140361 |
| 18 | 245337 |
| 19 | 245338 |
| 20 | 405338 |
| 21 | 405339 |
| 22 | 639595 |
| 23 | 639596 |
| 24 | 971372 |
| 25 | 971373 |
| 26 | 1428349 |
| 27 | 1428350 |
| 28 | 2043006 |
| 29 | 2043007 |
| 30 | 2853007 |
| 31 | 2853008 |
| 32 | 3901584 |
| 33 | 3901585 |
[1,17,18,274,275,1571,1572,5668,5669,15669,15670, 36406,36407,74823,74824,140360,140361,245337, 245338,405338,405339,639595,639596,971372,971373, 1428349,1428350,2043006,2043007,2853007,2853008, 3901584,3901585] |