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| n | a(n) |
|---|---|
| 0 | 1 |
| 1 | 6 |
| 2 | 18 |
| 3 | 39 |
| 4 | 71 |
| 5 | 115 |
| 6 | 188 |
| 7 | 264 |
| 8 | 373 |
| 9 | 477 |
| 10 | 662 |
| 11 | 818 |
| 12 | 1055 |
| 13 | 1271 |
| 14 | 1636 |
| 15 | 1888 |
| 16 | 2285 |
| 17 | 2653 |
| 18 | 3194 |
| 19 | 3586 |
| 20 | 4235 |
| 21 | 4783 |
| 22 | 5584 |
| 23 | 6188 |
| 24 | 7005 |
| 25 | 7817 |
| 26 | 8814 |
| 27 | 9690 |
| 28 | 10807 |
| 29 | 11843 |
| 30 | 13196 |
| 31 | 14304 |
| 32 | 15845 |
| 33 | 17213 |
| 34 | 18874 |
| 35 | 20454 |
| 36 | 22239 |
| 37 | 24079 |
| 38 | 26160 |
| 39 | 28060 |
| 40 | 30337 |
| 41 | 32409 |
| 42 | 34862 |
[1,6,18,39,71,115,188,264,373,477,662,818,1055, 1271,1636,1888,2285,2653,3194,3586,4235,4783,5584, 6188,7005,7817,8814,9690,10807,11843,13196,14304, 15845,17213,18874,20454,22239,24079,26160,28060, 30337,32409,34862] |